C/2013 US10 (Catalina)

C/2013 US10 (Catalina)
2016 Dec. 29.99 UT: m1=[15.5, NEGATIVE... 60-cm L (407x)... Sandor Szabo (Hungary) [Fainter than 15.5 mag]
2016 Sep. 03.05 UT: m1=15.2 CCD, Dia.=0.39′, DC=8... 0.25-m L  f/4.7 + CCD... Sergey Shurpakov (C36, Baran’, Belarus)
2016 Sep. 01.74 UT: m1=[13.5, negative... 40.0-cm L f/4.5 (257x)... Seiichi Yoshida (Gunma, Japan)
2016 Sep. 01.07 UT: m1=14.4, Dia.=0.7′, DC=2... 60-cm L (305x)... Sandor Szabo (Hungary)
2016 Sep. 01.07 UT: m1=15.7 CCD, Dia.=0.30′, DC=7/... 0.25-m L f/4.7 + CCD... Sergey Shurpakov (C36, Baran’, Belarus)
2016 Aug. 31.04 UT: m1=13.9, Dia.=1.3′, DC=1... 35-cm L (178x)... Jakub Černý (Senohraby, Czech Republic)
2016 Aug. 30.03 UT: m1=13.8, Dia.=1.2′, DC=2/... 35-cm L (178x)... Jakub Černý (Senohraby, Czech Republic)
2016 Aug. 28.03 UT: m1=13.8, Dia.=1.0′, DC=2... 35-cm L (178x)... Jakub Černý (Senohraby, Czech Republic)
2016 Aug. 23.03 UT: m1=15.3 CCD, Dia.=0.56′, DC=7... 0.20-m L f/4 + CCD... Sergey Shurpakov (A98, Baran’,Belarus)
2016 Aug. 14.04 UT: m1=15.8 CCD, Dia.=0.31′, DC=7/... 0.25-m L f/4.7 + CCD... Sergey Shurpakov (C36, Baran’, Belarus)
2016 May  04.47 UT: m1=11.9, Dia.=1.4′, DC=2... 40.0-cm L f/4.5 (144x)... Seiichi Yoshida (Gunma, Japan)
2016 May  02.45 UT: m1=11.6, Dia.=1.6′, DC=2... 40.0-cm L f/4.5 (144x)... Seiichi Yoshida (Gunma, Japan)
2016 Apr. 29.84 UT: m1=[11.0, NEGATIVE... 20×80 B... Marek Biely (Brno, Czech Republic) [Already out of my range. Fainter than 11.0 mag.]
2016 Apr. 26.88 UT: m1=10.8, Dia.=2.0′, DC=3... 30.5-cm L f/4.9 (94x)... J. P. Navarro Pina (Mula, Murcia, Spain)
2016 Apr. 07.85 UT: m1=10.5, Dia.=1.5′, DC=2, no tail ... 20-cm SCT (80x)... Carlos Labordena (Castellón, España)
2016 Abr. 06.87 UT: m1=10.1, Dia.=4′, DC=2/, Tail= 0.2º en AP: 70º... 20-cm SCT (77x)... Juan José González (Alto de la Camperona, alt. 1603 m, León, España)
2016 Apr. 06.863 UT: m1=10.0, Dia.=2′, DC=2... 11.4-cm L f/8 (45x)... Neil Norman (Ipswich, England)
2016 Apr. 05.91 UT: m1=9.9, Dia.=3′, DC=1/... 11.4-cm L f/8 (45x)... Neil Norman (Ipswich, England)
2016 Apr. 01.85 UT: m1=10.0:, Dia.=&2.5′, DC=1/... 20×80 B... Marek Biely (Brno, Czech Republic) [It has faded down rapidly. Limit observation]
2016 Mar. 27.88 UT: m1:11.5, Dia.=1.5′, DC=3... 30-cm L(78x)... Valentín Díaz (Aspe, Alicante, España)
2016 Mar. 22.47 UT: m1=9.7, Dia.=2.2′, DC=1... 40.0-cm L f/4.5 (144x)... Seiichi Yoshida (Ibaraki, Japan)
2016 Mar. 16.81 UT: m1=10.2, Dia.=4′, DC=3/... 25×100 B... Martin Lehky ((Hradec Kralove, Czech Republic)
2016 Mar. 13.73 UT: m1=9.9, Dia.=3.5′, DC=4/... 25.5-cm L (70.6x)... Danil Sidorko (Korenovsk, Russia)
2016 Mar. 12.97 UT: m1=9.8, Dia.=~3, DC=0... 20-cm L (42x)... Alex Scholten (Eerbeek, Netherlands)
2016 Mar. 11.97 UT: m1=9.7, Dia.=~3, DC=0... 20-cm L (42x)... Alex Scholten (Eerbeek, Netherlands)
2016 Mar. 11.93 UT: m1=10.1, Dia.=3.7′, DC=4... 25-cm L (73x)... Valentín Díaz (La Romaneta, Alicante, España)
2016 Mar. 11.86 UT: m1=9.9, Dia.=3′, DC=3, no tail... 20-cm SCT (50x)... Carlos Labordena (Castellón, España)
2016 Mar. 11.83 UT: m1=9.5, Dia.=5′, DC=3/, Tail= 0.4º en AP: 60º... 20-cm SCT (77x)... Juan José González (Pandorado, alt. 1190 m, León, España)
2016 Mar. 11.83 UT: m1=9.2, Dia.=3′, DC=3... 30.5-cm L f/4.9 (97x)... J. P. Navarro Pina (El Ardal Mula, Murcia, Spain)
2016 Mar. 10.85 UT: m1=9.4, Dia.=4′, DC=5... 11.4-cm L f/8 (45x)... Neil Norman (Ipswich, England)
2016 Mar. 09.90 UT: m1=11.5, Dia.=1.5′, DC=3... 30.5-cm L f/4.9 (97x)... J. P. Navarro Pina (El Ardal  Mula, Murcia, Spain)
2016 Mar. 09.81 UT: m1=9.3, Dia.=5.0′, Tail= 0.33 deg. PA: 72 deg ... 32.0-cm L f/5 (96x)... Uwe Pilz (Leipzig, Germany)
2016 Mar. 08.84 UT: m1=9.5, Dia.=3.5′, DC=4... 20-cm SCT (50x)... Carlos Labordena (Castellón, España)
2016 Mar. 08.73 UT: m1=9.5, Dia.=4.3′, DC=5... 25.5-cm L (46.2x)... Danil Sidorko (Korenovsk, Russia)
2016 Mar. 03.83 UT: m1=9.2, Dia.=3′, DC=4... 20-cm SCT (50x)... Carlos Labordena (Castellón, España)
2016 Mar. 07.854 UT: m1=9.4, Dia.=4′, DC=4... 11.4-cm L f/8 (45x)... Neil Norman (Ipswich, England)
2016 Mar. 07.85 UT: m1=9.8, Dia.=4′, DC=2... 20-cm L (42x)... Alex Scholten (Eerbeek, Netherlands)
2016 Mar. 07.72 UT: m1=9.5, Dia.=4′, DC=5... 25.5-cm L (46.2x)... Danil Sidorko (Korenovsk, Russia)
2016 Mar. 06.75 UT: m1=9.3, Dia.=5′, DC=5... 25.5-cm L (46.2x)... Danil Sidorko (Korenovsk, Russia)
2016 Mar. 05.93 UT: m1=10.0, Dia.=4′, DC=1... 20-cm L (42x)... Alex Scholten (Eerbeek, Netherlands)
2016 Mar. 05.92 UT: m1=9.3, Dia.=4′, DC=4/, Tail= 0.3º en AP 60º... 20-cm SCT (77x)... Juan José González (El Chano – Riofrío, alt. 990 m, León, España)
2016 Mar. 05.75 UT: m1=9.2, Dia.=5.5′, DC=5... 25.5-cm L (46.2x)... Danil Sidorko (Korenovsk, Russia)
2016 Mar. 03.83 UT: m1=9.7, Dia.=~3′, DC=1/... 20-cm L (42x)... Alex Scholten (Eerbeek, Netherlands) (star m=10.9 in coma)
2016 Mar. 03.82 UT: m1=9.4, Dia.=2.5′, DC=3... 30.5-cm L f/4,9 (97x)... J. P. Navarro Pina (El Ardal Mula, Murcia, Spain)
2016 Mar. 03.79 UT: m1=9.4, Dia.=4′, DC=2/... 15.2-cm R f/5 (38x)... Maik Meyer (Limburg, Germany) [ill-defined coma, comet involved w/ 10.8 mag star]
2016 Mar. 01.00 UT: m1=9.0, Dia.=3′, DC=4/... 20-cm SCT (77x)... Juan José González (Pandorado, alt. 1190 m, León, España)
2016 Feb. 29.93 UT: m1=9.4, Dia.=~6′, DC=2... 20-cm L (42x)... Alex Scholten (Eerbeek, Netherlands)
2016 Feb. 27.81 UT: m1=9.5, Dia.=~5, DC=2... 20-cm L (42x)... Alex Scholten (Eerbeek, Netherlands)
2016 Feb. 27.77 UT: m1=8.8, Dia.=4.5′, DC=2/... 15.2-cm R f/5 (38x)... Maik Meyer (Limburg, Germany) [ill-defined coma]
2016 Feb. 17.26 UT: m1=8.3, Dia.=8′, DC=3... 10×50 B... Carl Hergenrother (Tucson, AZ, USA)
2016 Feb. 12.96 UT: m1=7.8, Dia.=9′, DC=4/... 25×100 B... Martin Lehky (Czech Republic)
2016 Feb. 12.93 UT: m1=7.9, Dia.=12′, DC=5... 15×80 B... Alex Scholten (Eerbeek, Netherlands)
2016 Feb. 12.81 UT: m1=7.8, Dia.=10.5, DC=4... 10×50 B... Maik Meyer (Limburg, Germany)
2016 Feb. 11.94 UT: m1=7.4, Dia.=7′, DC=4, Tail= 15 arcmin ... 11×80 B... Carlos Labordena (Castellón, España)
2016 Feb. 11.93 UT: m1=7.6, Dia.=8′, DC=5, Tail= 20 arcmin ... 20-cm SCT (50x)... Carlos Labordena (Castellón, España)
2016 Feb. 11.78 UT: m1=7.8, Dia.=9′, DC=4/... 25×100 B... Martin Lehky (Czech Republic)
2016 Feb. 09.95 UT: m1=7.8, Dia.=12′... 15×80 B... Alex Scholten (Eerbeek, Netherlands) (star m=8.8 in coma)
2016 Feb. 09.76 UT: m1=7.5, Dia.=12, DC=4... 10×50 B... Maik Meyer (Limburg, Germany)
2016 Feb. 09.69 UT: m1=7.4, Dia.=7.4′, DC=5, Tail= 9.5 arcmin. in PA: 85 deg ... 25.5-cm L (46.2x)... Danil Sidorko (Korenovsk, Russia)
2016 Feb. 09.13 UT: m1=7.1, Dia.=7′, DC=4... 10×50 B... Carl Hergenrother (Tucson, AZ, USA)
2016 Feb. 08.76 UT: m1=7.3, Dia.=13′, DC=3/... 10×50 B... Maik Meyer (Limburg, Germany)
2016 Feb. 08.71 UT: m1=7.3, Dia.=8′, DC=5, Tail= 10 arcmin in PA: 85 deg ... 25.5-cm L (46.2x)... Danil Sidorko (Korenovsk, Russia)
2016 Feb. 08.20 UT: m1=7.0, Dia.=8′, DC=4, Tail= 15 arcmin ... 11×80 B... Carlos Labordena (Castellón, España)
2016 Feb. 08.19 UT: m1=7.1, Dia.=8′, DC=5, Tail= 25 arcmin ... 20-cm SCT (50x)... Carlos Labordena (Castellón, España)
2016 Feb. 07.89 UT: m1=7.6, Dia.=~12′, DC=6... 15×80 B... Alex Scholten (Eerbeek, Netherlands)
2016 Feb. 07.07 UT: m1=7.5, Dia.=8′, DC=4/... 25×100 B... Martin Lehky (Czech Republic)
2016 Feb. 06.86 UT: m1=6.9, Dia.=16′, DC=6... 20×80 B... J. P. Navarro Pina (Campos del Rio, Murcia, Spain)
2016 Feb. 06.77 UT: m1=7.3, Dia.=13′, DC=3/... 10×50 B... Maik Meyer (Limburg, Germany)
2016 Feb. 04.85 UT: m1=6.5, Dia.=8′, DC=4, Tail= 20 arcmin ... 11×80 B... Carlos Labordena (Castellón, España)
2016 Feb. 04.84 UT: m1=6.7, Dia.=8′, DC=6, Tail= 25 arcmin ... 15-cm T f/5 (30x)... Carlos Labordena (Castellón, España)
2016 Feb. 04.69 UT: m1=6.7, Dia.=17′, DC=5/, Tail= 0.2 deg, in PA: 98 deg ... 7-cm B (15x)... Danil Sidorko (Korenovsk, Russia)
2016 Feb. 04.11 UT: m1=6.8, Dia.=8′, DC=4... 10×50 B... Carl Hergenrother (Tucson, AZ, USA)
2016 Feb. 03.98 UT: m1=7.0, Dia.=9′, DC=4... 10×80 B... Martin Lehky (Czech Republic)
2016 Feb. 03.83 UT: m1=7.4, Dia.=10′, DC=5... 10×50 B... Juan José González (Alto de la Garandilla – Escuredo, alt. 1150 m, León, España) [Tail de polvo : 0.4º en AP 90º]
2016 Feb. 02.813 UT: m1=6.8, Dia.=8′, DC=6/... 11.4-cm L f/8 (45x)... Neil Norman (Ipswich, England)
2016 Feb. 01.91 UT: m1=6.8 DSLR, Dia.=11′... 1100d+300-mm lens... Giuseppe Pappa (Sicily, Italy)
2016 Feb. 01.82 UT: m1=7.2, Dia.=11′, DC=3... 20×80 B... J. P. Navarro Pina (San Jose de la Montaña, Murcia, Spain)
2016 Feb. 01.799 UT: m1=6.6, Dia.=10′, DC=6... 11.4-cm L f/8 (45x)... Neil Norman (Ipswich, England)
2016 Jan. 31.85 UT: m1=6.5, Dia.=15′, DC=3... 20×80 B... J. P. Navarro Pina (El Palmar, Murcia, Spain)
2016 Jan. 31.68 UT: m1=6.4, Dia.=16′, DC=5... 7-cm B (15x)... Danil Sidorko (Korenovsk, Russia)
2016 Jan. 31.10 UT: m1=6.9, Dia.=11′, DC=4... 10×50 B... Carl Hergenrother (Tucson, AZ, USA)
2016 Jan. 30.86 UT: m1=6.5, Dia.=8′, DC=3, Tail= 20 arcmin ... 11×80 B... Carlos Labordena (Castellón, España)
2016 Jan. 30.85 UT: m1=6.6, Dia.=9′, DC=4, Tail= 25 arcmin ... 15-cm T f/5 (30x)... Carlos Labordena (Castellón, España)
2016 Jan. 30.84 UT: m1=6.6, Dia.=18′, DC=6... 20×80 B... J. P. Navarro Pina (Campos del Rio, Murcia, Spain)
2016 Jan. 30.802 UT: m1=6.5, Dia.=10′, DC=6... 11.4-cm L f/8 (45x)... Neil Norman (Ipswich, England)
2016 Jan. 30.68 UT: m1=6.4, Dia.=18′, DC=5... 7-cm B (15x)... Danil Sidorko (Korenovsk, Russia)
2016 Jan. 29.94 UT: m1=6.7, Dia.=10′, DC=4... 10×80 B... Martin Lehky (Czech Republic)
2016 Jan. 29.80 UT: m1=6.6, Dia.=12′, DC=6... 8×56 B... Sandor Szabo (Sieggraben, Austria)
2016 Jan. 28.80 UT: m1=6.6, Dia.=~15′, DC=5... 8×56 B... Alex Scholten (Eerbeek, Netherlands) (in 20-cm L (42x) weak dustTail of about 0.6 degrees in PA=155 degrees)
2016 Jan. 28.25 UT: m1=6.7, Dia.=~15′, DC=5... 8×56 B... Alex Scholten (Eerbeek, Netherlands) (moonlight)
2016 Jan. 28.17 UT: m1=[6.6... 5-cm B (7x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2016 Jan. 28.17 UT: m1=[6.6... 7-cm B (15x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2016 Jan. 28.09 UT: m1=[6.6... 5-cm B (7x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2016 Jan. 27.98 UT: m1=6.7 DSLR, Dia.=14′... 1100d+300-mm lens... Giuseppe Pappa (Sicily, Italy)
2016 Jan. 26.83 UT: m1=6.5 DSLR, Dia.=14′... 1100d+300-mm lens... Giuseppe Pappa (Sicily, Italy)
2016 Jan. 26.68 UT: m1=6.3, Dia.=15′, DC=5... 7-cm B (15x)... Danil Sidorko (Korenovsk, Russia)
2016 Jan. 26.09 UT: m1=6.7, Dia.=15′, DC=3... 10×50 B... Carl Hergenrother (Tucson, AZ, USA)
2016 Jan. 25.88 UT: m1=6.6 DSLR, Dia.=16′... 1100d+300-mm lens... Giuseppe Pappa (Sicily, Italy)
2016 Jan. 25.875 UT: m1=6.4, Dia.=10′, DC=5... 11.4-cm L f/8 (45x)... Neil Norman (Ipswich, England)
2016 Jan. 25.75 UT: m1=6.4 , Dia.=14′, DC=3... 10×50 B... Maik Meyer (Limburg, Germany)
2016 Jan. 25.74 UT: m1=6.7 DSLR, Dia.=15′... 1100d+300-mm lens... Giuseppe Pappa (Sicily, Italy)
2016 Jan. 25.51 UT: m1=6.8, Dia.=8.2′, DC=2/... 7-cm B (15x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2016 Jan. 25.50 UT: m1=6.9:, Dia.=&10′, DC=2/... 5-cm B (7x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2016 Jan. 24.86 UT: m1=7.5, Dia.=3.5′, DC=3, 30.5-cm L f/4.9 (47x... J. P. Navarro Pina (El Palmar, Murcia, Spain) [full moon tonight, the visual coma of comet is very affected]
2016 Jan. 24.50 UT: m1=6.7, Dia.=11.0′, DC=2/... 5-cm B (7x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2016 Jan. 23.19 UT: m1=6.4, Dia.=10.5′, DC=4/... 20×80 B... Marek Biely (Brno, Czech Republic) [Clear sky, very cold weather. Large, moderately condensed coma. No Tails visible.]
2016 Jan. 22.92 UT: m1=6.6, Dia.=8′, DC=4... 10×80 B... Martin Lehky (Czech Republic)
2016 Jan. 22.67 UT: m1=6.7 DSLR, Dia.=13′... Nikon D5200 (18-mm lens)... Artyom Novichonok (Lososinnoe, Russia)
2016 Jan. 22.50 UT: m1=6.5, Dia.=11.0′, DC=2/... 5-cm B (7x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2016 Jan. 22.22 UT: m1=6.5, Dia.=~13′, DC=7... 8×56 B... Alex Scholten (Eerbeek, Netherlands)
2016 Jan. 21.87 UT: m1=6.7, Dia.=5′, DC=3... 20×80 B... J. P. Navarro Pina (El Palmar, Murcia, Spain) [Moonlight interference]
2016 Jan. 21.50 UT: m1=6.5, Dia.=13.4′, DC=3... 5-cm B (7x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2016 Jan. 20.53 UT: m1=6.5, Dia.=10′, DC=5... 10×50 B... Carl Hergenrother (Tucson, AZ, USA)
2016 Jan. 20.52 UT: m1=6.5, Dia.=13.4′, DC=3/... 5-cm B (7x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2016 Jan. 19.25 UT: m1=6.2  Dia.=13′, DC=4... 10×50 B... Maik Meyer (Limburg, Germany)
2016 Jan. 19.24 UT: m1=6.3, Dia.=~15′, DC=6... 8×56 B... Alex Scholten (Eerbeek, Netherlands)
2016 Jan. 18.91 UT: m1=6.5, Dia.=10′, DC=4... 10×80 B... Martin Lehky (Czech Republic)
2016 Jan. 18.52 UT: m1=6.4, Dia.=11.6′, DC=3/... 5-cm B (7x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2016 Jan. 18.45 UT: m1=6.5, Dia.=13′, DC=5... 10×50 B... Carl Hergenrother (Tucson, AZ, USA)
2016 Jan. 18.23 UT: m1=6.3, Dia.=~13′, DC=6... 8×56 B... Alex Scholten (Eerbeek, Netherlands) (in 15x80B dustTail of about 0.6 degrees in PA=205 degrees)
2016 Jan. 18.20 UT: m1=6.3, Dia.=12′, DC=4/, Tail=0.4 deg. PA: 215 deg ... 10×50 B... Maik Meyer (Limburg, Germany) [broad and diffuse dust Tail]
2016 Jan. 18.02 UT: m1=6.4, Dia.=17′, DC=3/... 10X70 B... Jorge Luis Salas (San Diego, Carabobo, Venezuela)
2016 Jan. 17.91 UT: m1=6.7, Dia.=6’, DC=4... 20X80 B... Sandro Baroni (Milano, Italia)
2016 Jan. 17.43 UT: m1=6.3, Dia.=11.6′, DC=3/... 5-cm B (7x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2016 Jan. 17.19 UT: m1=6.2, Dia.=~12′, DC=7... 8×56 B... Alex Scholten (Eerbeek, Netherlands) (hint of dustTail in PA=205 degrees)
2016 Jan. 17.07 UT: m1=6.3, Dia.=9′, DC=3, Tail= 25 arcmin ... 11×80 B... Carlos Labordena (Castellón, España)
2016 Jan. 17.06 UT: m1=6.4, Dia.=10′, DC=4... 15-cm T f/5 (30x)... Carlos Labordena (Castellón, España)
2016 Jan. 17.02 UT: m1=6.3, Dia.=11′, DC=4/... 10X70 B... Jorge Luis Salas (San Diego, Carabobo, Venezuela)
2016 Jan. 16.94 UT: m1=6.5, Dia.=8′, DC=6... 20×80 B... J. P. Navarro Pina (El Ardal Mula, Murcia, Spain)
2016 Jan. 16.52 UT: m1=6.3, Dia.=11.6′, DC=3/... 5-cm B (7x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2016 Jan. 16.02 UT: m1=6.4, Dia.=11′, DC=4/... 10X70 B... Jorge Luis Salas (San Diego, Carabobo, Venezuela)
2016 Jan. 16.01 UT: m1=6.6, Dia.=9′, DC=5... 10×50 B... Valentín Díaz (Pantano de Elche, España)
2016 Jan. 15.983 UT: m1=6.4, Dia.=11′, DC=5... 11.4-cm L f/8 (45x)... Neil Norman (Ipswich, England)
2016 Jan. 15.94 UT: m1=6.3, Dia.=13′, DC=6/... 8.5×42 B... Alex Scholten (Bussloo, Netherlands)
2016 Jan. 15.52 UT: m1=6.3, Dia.=11.6′, DC=3/... 5-cm B (7x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2016 Jan. 14.90 UT: m1=7.7, Dia.=10′, DC=4... 11X80 B... Angelito Sing (Makati, Philippines)
2016 Jan. 14.51 UT: m1=6.3, Dia.=11.6′, DC=3/... 5-cm B (7x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2016 Jan. 14.07 UT: m1=6.7, Dia.=8′, DC=6... 20×80 B... J. P. Navarro Pina (El Palmar, Murcia, Spain)
2016 Jan. 14.03 UT: m1=6.5, Dia.=17′, DC=5/... 10X70 B... Jorge Luis Salas (San diego, Carabobo, Venezuela)
2016 Jan. 13.52 UT: m1=6.3, Dia.=16′, DC=3/... 5-cm B (7x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2016 Jan. 13.35 UT: m1=6.3, Dia.=12′, DC=4... 10×50 B... Carl Hergenrother (Tucson, AZ, USA)
2016 Jan. 13.02 UT: m1=6.3, Dia.=10′, DC=4/... 10X70 B... Jorge Luis Salas (San diego, Carabobo, Venezuela)
2016 Jan. 12.88 UT: m1=7.7, Dia.=12′, DC=4... 11X80 B... Angelito Sing (Makati, Philippines)
2016 Jan. 12.51 UT: m1=6.3, Dia.=&17′, DC=3/... 5-cm B (7x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2016 Jan. 12.20 UT: m1=6.5, Dia.=6′, DC=5, Tail= 25 arcmin ... 11×80 B... Carlos Labordena (Castellón, España)
2016 Jan. 12.19 UT: m1=5.9, Dia.=10′, DC=4/... 10X70 B... Jorge Luis Salas (San diego, Carabobo, Venezuela)
2016 Jan. 11.73 UT: m1=6.6, Dia.=12.2’, DC=5... 7×50 B... Chris Wyatt (Walcha, NSW, Australia) [Outer coma semi-transparent, inner coma strongly condensed but not stellar. Enhances strongly in Swan Band filter, no Tail visible. Low altitude = 8.3°... Nautical twilight, slight interference
2016 Jan. 11.36 UT: m1=6.3, Dia.=12′, DC=4... 10×50 B... Carl Hergenrother (Tucson, AZ, USA)
2016 Jan. 11.03 UT: m1=5.8, Dia.=12′, DC=4/... 10X70 B... Jorge Luis Salas (San diego, Carabobo, Venezuela)
2016 Jan. 10.86 UT: m1=6.6, Dia.=10′, DC=4... 11X80 B... Angelito Sing (Makati, Philippines)
2016 Jan. 10.50 UT: m1=6.2, Dia.=10.5′, DC=3/... 5-cm B (7x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2016 Jan. 10.30 UT: m1=6.5, Dia.=8′, DC=3... 8-cm B (20x)... Brad Young (Tulsa, OK, USA)
2016 Jan. 10.23 UT: m1=6.4 CCD, Dia.=11.3′... 6.8-cm R + CCD V f/3.8... Mieczyslaw Leszek Paradowski (Lublin, Poland) [Twilight]
2016 Jan. 10.20 UT: m1=6.3 DSLR, Dia.=8.9′... 6.8-cm R + DSLR V f/5.9... Mieczyslaw Leszek Paradowski (Lublin, Poland) [Twilight]
2016 Jan. 10.19 UT: m1=6.2, Dia.=10′, DC=5/... 11.4-cm L f/8 (60x)... Jorge Luis Salas (San Diego, Carabobo, Venezuela)
2016 Jan. 09.79 UT: m1=6.4, Dia.=17′, DC=6... 10x70R... Seiichi Yoshida (Ibaraki, Japan)
2016 Jan. 09.78 UT: m1=7.0, Dia.=11′, DC=6, Tail= 24′ in PA: 185 deg ... 40.0-cm L f/4.5 (36x)... Seiichi Yoshida (Ibaraki, Japan)
2016 Jan. 09.56 UT: m1=6.1, Dia.=11′, DC=3... 10×50 B... Carl Hergenrother (Tucson, AZ, USA)
2016 Jan. 09.51 UT: m1=6.3:, Dia.=10.5′, DC=4/... 5-cm B (7x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2016 Jan. 09.22 UT: m1=5.4, Dia.=12.0′... Naked Eye... Uwe Pilz, Leipzig, Germany)
2016 Jan. 09.04 UT: m1=6.5, Dia.=8′, DC=6... 10×50 B... Juan José González (Sierra de Abredo – Coaña, alt. 450 m, Asturias, España) [Altura sobre el horizonte: 19º]
2016 Jan. 08.76 UT: m1=8.1, Dia.=~14′, DC=3... 15×80 B... Alex Scholten (Bussloo, Netherlands)
2016 Jan. 08.22 UT: m1=6.2, Dia.=12′, DC=5... 10×50 B... Maik Mayer (Limburg, Germany)
2016 Jan. 08.21 UT: m1=6.6, Dia.=~15, DC=6... 8×56 B... Alex Scholten (Eerbeek, Netherlands) [in 15x80B weak dust Tail of about 0.8 degrees in PA=220 degrees]
2016 Jan. 08.09 UT: m1=6.4, Dia.=8′, DC=5... 20×80 B... Valentín Díaz Parreño (Elche capital, España)
2016 Jan. 07.90 UT: m1=7.2, Dia.=6′, DC=4... 11x80 B... Angelito Sing (Makati, Philippines)
2015 Jan. 07.79 UT: m1=7.3, Dia.=15′, DC=6... 20×80 B... J. P. Navarro Pina (El Ardal Mula, Murcia, Spain)
2016 Jan. 07.49 UT: m1=6.4, Dia.=9′, DC=4/... 5-cm B (7x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2016 Jan. 07.19 UT: m1=6.5, Dia.=8′, DC=4/... 10×70 B... Jorge Luis Salas (San Diego, Carabobo, Venezuela)
2016 Jan. 06.16 UT: m1=6.2, Dia.=7′, DC=4, Tail= 30'... 11×80 B... Carlos Labordena (Castellón, España)
2016 Jan. 05.87 UT: m1=7.3, Dia.=6′, DC=4... 11X80 B... Angelito Sing (Makati, Philippines)
2016 Jan. 05.22 UT: m1=6.5, Dia.=8′, DC=5... 12×50 B... Giuseppe Pappa (Mascalucia, Sicily, Italy)
2016 Jan. 04.86 UT: m1=6.7, Dia.=6′, DC=4... 11X80 B... Angelito Sing (Makati, Philippines)
2016 Jan. 04.00 UT: m1=6.5:, Dia.=&9′, DC=4/... 7-cm B (15x)... Danil Sidorko (Korenovsk, Russia)
2016 Jan. 03.875 UT: m1=6.7, Dia.=6′, DC=4... 11X80 B... Angelito Sing (Makati, Philippines)
2016 Jan. 02.52 UT: m1=6.5, Dia.=9.5′, DC=4/... 5-cm B (7x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2016 Jan. 02.31 UT: m1=6.2, Dia.=6.0’, DC=4... 25-cm SCT (40x)... Alberto Anunziato (Oro Verde, Argentina)
2016 Jan. 02.24 UT: m1=6.3, Dia.=7′, DC=4, Tail= 15 arcmin ... 11×80 B... Carlos Labordena (Castellón, España)
2016 Jan. 01.52 UT: m1=6.5, Dia.=&9′, DC=4/... 5-cm B (7x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2016 Jan. 01.51 UT: m1=6.0, Dia.=6, DC=5... 10×50 B... Carl Hergenrother (Tucson, AZ, USA)
2016 Jan. 01.50 UT: m1=6.0, Dia.=10′, DC=6... 8-cm B (20x)... Brad Young (Tulsa, OK, USA)
2016 Jan. 01.30 UT: m1=6.5, Dia.=5′, DC=4... 10-cm f/5 R (25x)... Willian Souza (Sao Paulo, Brazil)
2016 Jan. 01.187 UT: m1=6.4, Dia.=7′, DC=5... 11.4-cm L f/8 (45x)... Neil Norman (Ipswich, England)
2016 Jan. 01.10 UT: m1=5.9, Dia.=15′, DC=6... 20×80 B... J. P. Navarro Pina (El Palmar, Murcia, Spain)
2015 Dec. 31.24 UT: m1=6.4, Dia.=15.0′, DC=4... 7×50 B... Uwe Pilz (Leipzig, Germany)
2015 Dec. 31.18 UT: m1=6.6:, Dia.=&5′, DC=3/... 20×80 B... Marek Biely (Brno, Czech Republic) [Finally I could see it despite not very good observing conditions. Coma was diffuse and circular, Tails were not visible. Observation was influenced by thin clouds and moonlight.]
2015 Dec. 31.13 UT: m1=6.4, Dia.=8′, DC=4... 25×100 B... Martin Lehky (Czech Republic)
2015 Dec. 30.51 UT: m1=6.4, Dia.=8′, DC=5... 5-cm B (7x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Dec. 30.44 UT: m1=6.1, Dia.=8, DC=4... 10×50 B... Carl Hergenrother (Tucson, AZ, USA)
2015 Dec. 30.25 UT: m1=6.3, Dia.=&10′, DC=7... 8×56 B... Alex Scholten (Eerbeek, Netherlands) (moonlight)
2015 Dec. 30.17 UT: m1=6.3, Dia.=10′, DC=5... 10×50 B... Martin Lehky (Czech Republic)
2015 Dec. 28.21 UT: m1=6.2, Dia.=8′, DC=7... 15×80 B... Alex Scholten (Eerbeek, Netherlands) (moonlight)
2015 Dec. 27.52 UT: m1=6.4, Dia.=7′, DC=5... 5-cm B (7x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Dec. 23.24 UT: m1=5.7, Dia.=10′, DC=5... 11.4-cm L f/8 (45x)... Neil Norman (Ipswich, England)
2015 Dec. 22.20 UT: m1=6.2, Dia.=9′, DC=3/, Tail= 10′ PA: 155 deg ... 12×50 B... Giuseppe Pappa (Mascalucia, Sicily, Italy)
2015 Dec. 21.54 UT: m1=6.4, Dia.=6, DC=6... 10×50 B... Carl Hergenrother (Tucson, AZ, USA)
2015 Dec. 21.51 UT: m1=6.5:, Dia.=7′, DC=5... 5-cm B (7x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Dec. 21.24 UT: m1=6.2, Dia.=10′, DC=6... 10×50 B... Juan José González (Alto del Castro – Aralla, alt. 1720 m, León, España) [En 25x100B: Tail iónica: 1.1º en a.p. 280º, Trail de polvo: 0.4º en a.p.150º]
2015 Dec. 21.19 UT: m1=6.2, Dia.=6′, DC=5, Tail= 0.5 deg. in PA: 295 deg ... 25×100 B... Mieczyslaw Leszek Paradowski (Lublin, Poland)
2015 Dec. 21.18 UT: m1=6.2, Dia.=6′, DC=5... 7×50 B... Mieczyslaw Leszek Paradowski (Lublin, Poland)
2015 Dec. 20.21 UT: m1=6.3, Dia.=9′, DC=5, Tail= 0.5º PA: 171º... 10×50 B... Valentín Díaz (Barranc del Leon, Alicante, España)
2015 Dec. 19.31 UT: m1=6.2, Dia.=7′, DC=5... 7×50 B... Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Nautical twilight]
2015 Dec. 19.30 UT: m1=6.3, Dia.=6′, DC=6... 20×100 B... Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Dec. 19.21 UT: m1=5.3, Dia.=25′, DC=8... 20×80 B... J. P. Navarro Pina (El Palmar, Murcia, Spain)
2015 Dec. 18.75 UT: m1=6.2, Dia.=7.8′, DC=6... 20-cm... Con Stoitsis (Mildura, Victoria, Australia) [Coma has almost stellar appearance, more difussed towards edges. Elongated, but couldn’t make out Tail Approx 9 degrees above horizon and observation made in twilight]
2015 Dec. 18.71 UT: m1=6.4, Dia.=8.5’, DC=6... 7×50 B... [Chris Wyatt (Walcha, NSW, Australia) [Coma diffuse and opaque at centre, small stellar central condensation. Enhances strongly in Swan Band filter. Low altitude = 10.2˚, no Tail]
2015 Dec. 18.52 UT: m1=6.4, Dia.=&6′, DC=5... 5-cm B (7x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Dec. 18.22 UT: m1=6.3, Dia.=6′, DC=5, Tail= 30 arcmin ... 15.0-cm SCT (30x)... Carlos Labordena (Castellón, España)
2015 Dec. 18.21 UT: m1=6.2, Dia.=6′, DC=4, Tail= 20 arcmin ... 11×80 B... Carlos Labordena (Castellón, España)
2015 Dec. 17.52 UT: m1=6.4, Dia.=&6′, DC=5... 5-cm B (7x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Dec. 17.15 UT: m1=6.3, Dia.=7.5′, DC=6... 6-cm B (12x)... Artyom Novichonok (Konchezero station, Russia)
2015 Dec. 16.72 UT: m1=6.4... 25×100 B... David A. J. Seargent (Cowra, NSW, Australia)
2015 Dec. 16.52 UT: m1=6.3, Dia.=7′, DC=5... 5-cm B (7x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Dec. 16.50 UT: m1=6.3, Dia.=7′, DC=5... 8-cm B (20x)... Brad Young (Tulsa, OK, USA) [slight Tail (15′ long) noticed this date]
2015 Dec. 16.23 UT: m1=6.4, Dia.=5′, DC=3... 20×80 B... Valentín Díaz (Elche capital, Alicante, España)
2015 Dec. 16.14 UT: m1=–.-, Dia.=7.8′, DC=5/, Tail= 0.2 deg ... 20-cm L (80x)... Artyom Novichonok (near Shapshozero, Russia)
2015 Dec. 16.11 UT: m1=6.4, Dia.=8′, DC=6, Tail= 0.6 deg ... 6-cm B (12x)... Artyom Novichonok (near Shapshozero, Russia)
2015 Dec. 15.52 UT: m1=6.4, Dia.=7, DC=5... 10×50 B... Carl Hergenrother (Tucson, AZ, USA)
2015 Dec. 15.23 UT: m1=6.5, Dia.=4′, DC=4, Tail= 15 arcmin ... 11×80 B... Carlos Labordena (Castellón, España)
2015 Dec. 14.51 UT: m1=6.3, Dia.=7′, DC=5/... 5-cm B (7x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Dec. 13.55 UT: m1=6.5, Dia.=5′, DC=6... 20×80 B... Man-To Hui (Joshua Tree National Park, CA, USA) [Tail=0.6 deg. dust Tail in p.a. 150 deg., 0.5 deg ion Tail in p.a. 300 deg.)
2015 Dec. 13.20 UT: m1=6.0, Dia.=6′, DC=5, Tail=10′ PA: 155 deg ... 12×50 B... Giuseppe Pappa (Acitrezza, Sicily, Italy)
2015 Dec. 12.31 UT: m1=6.3, Dia.=6′, DC=6... 20×100 B... Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Nautical twilight]
2015 Dec. 12.24 UT: m1=6.2, Dia.=5′, DC=6/... 10×50 B... Juan José Gonzalez (Collada de la Cobertoria, alt. 1150 m, Asturias, España) [En 25x100B: m1=6.4... Tail iónica: 0.8º en a.p. 290º, Trail de polvo: 0.6º en a.p.150º]
2015 Dec. 12.18 UT: m1=6.1, Dia.=6′, DC=4, Tail=10′ PA: 160 deg ... 12×50 B... Giuseppe Pappa (Mascalucia, Sicily, Italy)
2015 Dec. 11.52 UT: m1=6.4, Dia.=7′, DC=5/... 5-cm B (7x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Dec. 11.19 UT: m1=6.2, Dia.=3′, DC=5, Tail= 14′ in PA: 300 deg ... 25×100 B... Mieczyslaw Leszek Paradowski (Lublin, Poland)
2015 Dec. 10.54 UT: m1=6.3, Dia.=6, DC=5... 10×50 B... Carl Hergenrother (Tucson, AZ, USA)
2015 Dec. 10.52 UT: m1=6.4, Dia.=7′, DC=5/... 5-cm B (7x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Dec. 10.34 TU: m1=6.3, Dia.=5′, DC=4... 25-cm L f:4.5 (66x)... Gonzalo Vargas Beltrán (Cochabamba Bolivia) [La coma aparece un poco irregular en su contorno sugiriendo posible origen de una Tail entre valores AP de 250 a 300 grados, fácilmente visible con visión lateral, y entre 110 a 120 grados muy difusa, observada con filtro Skyglow)
2015 Dec. 10.23 UT: m1=6.4, Dia.=4′, DC=4, Tail= 20 arcmin ... 11×80 B... Carlos Labordena (Castellón, España)
2015 Dec. 09.52 UT: m1=6.2, Dia.=4, DC=7... 10×50 B... Carl Hergenrother (Tucson, AZ, USA)
2015 Dec. 09.52 UT: m1=6.4:, Dia.=7′, DC=5/... 5-cm B (7x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Dec. 08.52 UT: m1=6.3, Dia.=6, DC=6... 10×50 B... Carl Hergenrother (Tucson, AZ, USA)
2015 Dec. 08.52 UT: m1=6.5, Dia.=7′, DC=5/... 5-cm B (7x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Dec. 08.34 UT: m1=6.4, Dia.=6′, DC=3... 8-cm R (40x)... Gonzalo Vargas B. (Cochabamba , Bolivia)
2015 Dec. 08.30 UT: m1=6.6*, Dia.=5’, DC=4, Tail= not visible... 25-cm SCT (40x)... Alberto Anunziato (Oro Verde, Argentina)
2015 Dec. 08.23 UT: m1=6.6, Dia.=6′, DC=7... 15×80 B... Alex Scholten (Eerbeek, Netherlands) (moonlight)
2015 Dec. 07.72 UT: m1=6.5, Dia.=3’, DC=5/... 25-cm L f:5 (39x)... Chris Wyatt (Walcha, NSW, Australia) [Moonlight, Twilight, slightly sky haze, Low altitude = 8.5°. Ground fog present to 0.5m. Coma appears quite diffuse and opaque, pale aqua-blue in colour, well condensed and almost stellar. Enhances strongly in Swan Band filter. Background sky washed with moonlight, comet was easy to locate 2.6° away from the thin crescent Moon in PA: 048°. Not visible in 11×70 B’s due to scattered moonlight and haze]
2015 Dec. 07.53 UT: m1=6.5, Dia.=7′, DC=4/... 5-cm B (7x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Dec. 07.19 UT: m1=6.5 DSLR, Dia.=7′... digital reflex+0.3-m lens... Giuseppe Pappa (Sicily, Italy)
2015 Dec. 07.18 UT: m1=6.4, Dia.=4.5′, DC=6... 7-cm B (15x)... Artyom Novichonok (Petrozavodsk, Russia)
2015 Dec. 07.18 UT: m1=6.3 Dia.=6′, DC=4... 12×50 B... Giuseppe Pappa (Sicily, Italy)
2015 Dec. 06.53 UT: m1=6.4, Dia.=4, DC=6... 10×50 B... Carl Hergenrother (Tucson, AZ, USA)
2015 Dec. 06.53 UT: m1=6.5, Dia.=7′, DC=4/... 5-cm B (7x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Dec. 06.25 UT: m1=6.3, Dia.=5′, DC=6... 10×50 B... Juan José González (Collada de la Cobertoria, alt. 1150 m, Asturias, España) [Alguna interferencia lunar. En 25×100 B: m1=6.5... Tail iónica: 0.6º en a.p. 290º, Trail de polvo: 0.3º en a.p.150º]
2015 Dec. 06.07 UT: m1=6.4, Dia.=3′, DC=4... 15×70 B... Willian Souza (Sao Paulo, Brazil)
2015 Dec. 06.07 UT: m1=6.5, Dia.=3′, DC=4... 10-cm f/5 R (28x)... Willian Souza (Sao Paulo, Brazil)
2015 Dec. 05.21 UT: m1=6.3, Dia.=4.0′... 16×70 B... Uwe Pilz (Leipzig, Germany)
2015 Dec. 04.53 UT: m1=6.6:, Dia.=7′, DC=4/... 5-cm B (7x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Dec. 04.50 UT: m1=6.5, Dia.=5′, DC=5... 8-cm B (20x)... Brad Young (Tulsa, OK, USA)
2015 Dec. 04.23 UT: m1=6.2, Dia.=3′, DC=4, Tail= 20 arcmin ... 11×80 B... Carlos Labordena (Castellón, España)
2015 Dec. 04.208 UT: m1=6.2, Dia.=8′, DC=4/, Tail= 0.3′, PA: 143 deg ... 11.4-cm L f/8 (45x)... Neil Norman (Ipswich, England)
2015 Dec. 04.19 UT: m1=6.2, Dia.=7′... DC=5... 12×50 B... Giuseppe Pappa (Sicily, Italy)
2015 Dec. 03.54 UT: m1=6.5, Dia.=7′, DC=4/... 5-cm B (7x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Dec. 03.50 UT: m1=6.5, Dia.=5′, DC=5... 8-cm B (20x)... Brad Young (Tulsa, OK, USA)
2015 Dec. 02.54 UT: m1=6.2, DC=4/... 5-cm B (7x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2015 Dec. 01.47 UT: m1=6.2, Dia.=10’, DC=4... 10×50 B... Jorge Solano (Montesano Z16, Guatemala City)
2015 Dec. 01.24 UT: m1=6.2, Dia.=4′, DC=6... 10×50 B... Juan José González (Puerto de Aralla, alt. 1530 m, León, España) [En 10×50 B: Altura sobre el horizonte: 11º. En 25×100 B: m1=6.4. En 20 -cm SCT: m1=6.5... Tail iónica: 0.3º en a.p. 290º, Tail de polvo: 0.3º en a.p.140º. Interferencia lunar. Luz zodiacal. Cielo muy claro de montaña]
2015 Nov. 30.53 UT: m1=6.2, Dia.=4, DC=5... 10×50 B... Carl Hergenrother (Tucson, AZ, USA)
2015 Nov. 28.53 UT: m1=6.3, Dia.=4′, DC=5... 10×50 B... Carl Hergenrother (Tucson, AZ, USA)
2015 Nov. 28.07 UT: m1=6.0, Dia.=3′, DC=5... 10-cm R f/5 (28x)... Willian Souza (Sao Paulo, Brazil)
2015 Nov. 28.22 UT: m1=6.0... 16×70 B... Uwe Pilz (Leipzig, Germany)
2015 Nov. 24.23 UT: m1=5.9, Dia.=3′, DC=4, Tail= 20′... 11×80 B... Carlos Labordena (Castellón, España)
2015 Nov. 24.23 UT: m1=6.5, Dia.=3′, DC=5... 20×60 B... José J. Chambó (Llosa de Ranes, Valencia, España)
2015 Nov. 23.25 UT: m1=5.7, Dia.=4′, DC=5, Tail: 0.2º en AP 280º... 25×100 B... Juan José González (Peña Nebina – Ferreruela de Tábara, alt. 970 m, Zamora, España) [Altura sobre el horizonte: 5º. Crepúsculo astronómico. Luz zodiacal. Estrellas de comparación situadas a similar baja altura que el cometa. Observación realizada bajo mejores condiciones que la previa de Nov. 22.25, desde una ubicación de montaña más elevada y oscura, percibiendo un mayor diámetro de coma y con ello una m1 más brillante]
2015 Nov. 23.24 UT: m1=6.0, Dia.=5′, DC=6... 20×80 B... J. P. Navarro Pina (El Palmar, Murcia, Spain)
2015 Nov. 22.54 UT: m1=6.5, Dia.=2′, DC=5... 30×125 B... Carl Hergenrother (Tucson, AZ, USA)
2015 Nov. 22.25 UT: m1=6.0:, Dia.=3′, DC=5... 25×100 B... Juan José González (Roales de Campos, alt. 750 m, Valladolid, España) [Altura sobre el horizonte: 4º. Crepúsculo astronómico. Luz zodiacal]
2015 Nov. 21.50 UT: m1=7.0, Dia.=3′, DC=4... 8-cm B (20x)... Brad Young (Tulsa, OK, USA)
2015 Oct. 16.39 UT: m1=7.0, Dia.=7.6’, DC=6... 11×70 B... Chris Wyatt (Walcha, NSW, Australia) [Low altitude = 8.9°... Moonlight. Coma diffuse, short ion Tail just visible 7.5’ in length in P.A. 138°, bright stellar central condensation, enhances strongly in Swan Band filter. Through 10” f/5 dob at x39 I could trace the Tail to 35’ in length in P.A. 138° with first 8.2’ of the Tail opaque and pale-green in colour, the inner coma enhanced strongly in Swan Band and also appeared as an opaque pale-green colour]
2015 Oct. 13.94 UT: m1=6.5, Dia.=8′, DC=5... 20×100 B... Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Comet altitude: 11º... atmospheric extinction applied]
2015 Oct. 09.39 UT: m1= 6.9, Dia.=10.5’, DC= 5/... 7×50 B... Chris Wyatt (Walcha, NSW, Australia) [Low altitude = 15.5°. Outer coma diffuse, inner coma opaque with compact central condensation, sometimes stellar. Centre enhances strongly in Swan Band filter, no Tail. Tail visible in 10” f/5 dob at x39, 11.5’ of Tail length opaque and fades with a (transparent) traceable length of 58’ in PA: 136°]
2015 Oct. 08.35 UT: m1=6.9, Dia.=4.8′, DC=4... 11×70 B... Con Stoitsis (Caulfield, Australia) [Comet approx 18 degrees above the horizon]
2015 Oct. 06.96 UT: m1=6.5, Dia.=12′, DC=4... 7×50 B... Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Oct. 05.94 UT: m1=6.5, Dia.=12′, DC=4/... 7×50 B... Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Oct. 05.39 UT: m1=7.0, Dia.=6.5’, DC=4... 11×70 B... Chris Wyatt (Walcha, NSW, Australia) [No Tail, close to mag 8.0 star, 4.1’ away in P.A. 162°... Sky slightly hazy. Low altitude = 19.1°... Faint transparent outer coma, opaque inner coma. Through 10” f/5 dob the Tail extension 8.3’ in length in P.A. 132° is opaque and fades to a transparent Tail tracing out to to 40’ in length in same PA]
2015 Oct. 03.38 UT: m1=7.1, Dia.=9’, DC=6... 11×70 B... Chris Wyatt (Walcha, NSW, Australia) [No Tail, close to mag 8.6 star, 8.5’ away in P.A. 116°... Outer coma transparent and faint, inner coma disc-like and opaque with small stellar central condensation. Enhances well in Swan Band filter. Through the 10” f/5 dob a x39 there is a Tail visible which was traced to 27’ in length approximately in P.A. 133°. Curiously there was a faint smudge around 3’ in width, 29.5’ from the coma centre in P.A. 133°, which may be part of the Tail (DE?)]
2015 Oct. 02.93 UT: m1=6.5, Dia.=10´, DC=4... 10×50 B... Willian Souza (Maresias, Brazil)
2015 Oct. 01.95 UT: m1=6.6, Dia.=10′, DC=4... 7×50 B... Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Clouds]
2015 Oct. 01.94 UT: m1=6.7, Dia.=8′, DC=5, Tail= 20 arcmin in PA: 135 deg ... 20×100 B... Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Clouds]
2015 Oct. 01.42 UT: m1=6.6, Dia.=4, DC=5, Tail= 0.2 degrees in PA: 130 degrees... 25×100 B... David A. J. Seargent (Cowra, NSW, Australia)
2015 Sep. 22.42 UT: m1=7.2, Dia.=4.2’, DC=6... 25-cm L f:5 (39x)... Chris Wyatt (Walcha, NSW, Australia) [Moonlight... Tail visible 58’ in length in P.A. 128°... Outer coma diffuse, inner coma opaque pale aqua-blue in colour, enhances strongly in Swan Band filter. First 14’ of Tail also enhances slightly in Swan Band filter]
2015 Sep. 19.95 UT: m1=6.3, Dia.=12′, DC=3... 7×50 B... Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Moonlight]
2015 Sep. 16.96 UT: m1=6.2, Dia.=15′, DC=4... 7×50 B... Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Sep. 16.94 UT: m1=6.5, Dia.=8´, DC=3... 15×70 B... Willian Souza (Sao Paulo, Brazil)
2015 Sep. 16.55 UT: m1=7.2: 25×100 B... David A. J. Seargent (Cowra, NSW, Australia)
2015 Sep. 16.40 UT: m1=7.1, Dia.=6.3’, DC=4... 11×70 B... Chris Wyatt (Walcha, NSW, Australia] [Coma close to bright stars... Coma pale aqua-blue in colour, faint outer coma, bright opaque inner coma, moderately condensed. Short faint Tail visible, approximately 9.3’ in length in P.A. 124°]
2015 Sep. 15.92 UT: m1=6.7, Dia.=8′, DC=4... 10×50 B... Alexandre Amorim (Florianopolis, Brazil) [wind interference]
2015 Sep. 14.97 UT: m1=6.3, Dia.=6´, DC=4... 25-cm L f/4.5 (67x)... A. Gonzalo Vargas (Cochabamba Bolivia) [Tail longitud 9´ de largo dirección AP: 97 a 113 grados aprox. Excelente calidad de cielo con magnitud visual límite de estrellas de magnitud 5.5 aprox.]
2015 Sep. 14.95 UT: m1=6.6:, Dia.=8′, DC=4... 10×50 B... Alexandre Amorim (Florianopolis, Brazil) [close to TYC 8284-3202-1]
2015 Sep. 14.94 UT: m1=6.3, Dia.=15′, DC=4... 7×50 B... Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Sep. 13.465 UT: m1=7.2, Dia.=6’, DC=3... 10×50 B... Rob Kaufman (Bright, Victoria, Australia) [Coma brightens towards middle, no defined central condensation visible. Tail 8 ar-cminutes in PA: 125 deg.]
2015 Sep. 12.97 UT: m1=6.0, Dia.=10’, DC=3, Tail= not visible... 10.5-cm MCT (45x)... Alberto Anunziato (Paraná, Argentina)
2015 Sep. 12.94 UT: m1=6.6, Dia.=10′, DC=4... 10×50 B... Alexandre Amorim (Florianopolis, Brazil)
2015 Sep. 12.00 UT: m1=6.5, Dia.=8′, DC=4... 10×50 B... Alexandre Amorim (Florianopolis, Brazil)
2015 Sep. 11.37 UT: m1=7.1, Dia.=11.5’, DC=4... 11×70 B... Chris Wyatt (Walcha, NSW, Australia) [Coma very diffuse, faint outer coma, broad moderately condensed centre, pale aqua-blue in colour. Faint Tail visible, approximately 12’ in length in P.A. 121°. Observing site altitude 1250m, limiting magnitude in vicinity of comet = +6.3]
2015 Sep. 10.47 UT: m1=6.8, Dia.=6, DC=5, Tail= 0.3 deg. PA: 120 deg.: 25×100 B... David A. J. Seargent (Cowra, NSW, Australia)
2015 Sep. 09.99 UT: m1=6.4, Dia.=5´, DC=4... 25-cm L f/4.5 (67x)... A. Gonzalo Vargas (Cochabamba Bolivia) [Usando filtro SkyGlow para contrarrestar contaminación luminosa se aprecia claramente la Tail de unos 10 minutos de arco en longitud en un ángulo AP entre 117 a 120 grados. Calidad de cielo buena imagen estable.]
2015 Sep. 09.98 UT: m1=6.4, Dia.=8′, DC=3... 15×70 B... Willian Souza (Sao Paulo, Brazil)
2015 Sep. 09.91 UT: m1=6.4, Dia.=8′, DC=4... 10×50 B... Alexandre Amorim (Florianopolis, Brazil)
2015 Sep. 08.108 UT: m1=5.9, Dia.=5.7′, DC=4, Tail= 1.13 deg. in PA: 114 deg ... 13-cm R (26x)... Diego H. Massat (Reconquista, Argentina) [Bruma baja debido a polvillo en el ambiente]
2015 Sep. 06.53 UT: m1=6.7, Tail= 0.5 degrees PA: 118 deg ... 25×100 B... David A. J. Seargent (Cowra, NSW, Australia)
2015 Sep. 06.09 UT: m1=6.2, Dia.=12’, DC=4, Tail= not visible... 25-cm SCT (40x)... Alberto Anunziato (Oro Verde, Argentina)
2015 Sep. 05.906 UT: m1=6.9, Dia.=1.5’, DC=1, Tail= 20 arcsec. in PA: 30 deg ... 12-cm L f/5.8 (70x)... José Recioy (Observatorio Eta Carinae, Villa Serrana, Dpto. de Lavalleja, Uruguay)
2015 Sep. 05.035 UT: m1=6.1, Dia.=3.0′, DC=3, Tail= 12.0 arcmin ... 13-cm L (26x)... Diego H. Massat (Reconquista, Argentina)
2015 Sep. 04.00 UT: m1=6.4, Dia.=10′, DC=3... 10×50 B... Alexandre Amorim (Florianopolis, Brazil)
2015 Sep. 02.94 UT: m1=6.3, Dia.=15′, DC=4... 7×50 B... Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Sep. 02.00 UT: m1=6.3, Dia.=15′, DC=3/... 7×50 B... Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Aug. 31.92 UT: m1=6.5, Dia.=10′, DC=3... 10×50 B... Alexandre Amorim (Florianopolis, Brazil)
2015 Aug. 30.94 UT: m1=6.6, Dia.=10′, DC=3... 11.4-cm L f/4 (22x)... Willian Souza (Sao Paulo, Brazil)
2015 Aug. 30.93 UT: m1=6.6, Dia.=10′, DC=3/... 10-cm R f/5 (25x)... Willian Souza (Sao Paulo, Brazil)
2015 Aug. 30.93 UT: m1=6.5, Dia.=10′, DC=3... 10×50 B... Alexandre Amorim (Florianopolis, Brazil)
2015 Aug. 30.93 UT: m1=6.4, Dia.=15′, DC=3/... 7×50 B... Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Aug. 30.92 UT: m1=6.5, Dia.=10′, DC=4... 15×70 B... Willian Souza (Sao Paulo, Brazil)
2015 Aug. 29.92 UT: m1=6.5, Dia.=8′, DC=3/... 15×70 B... Willian Souza (Sao Paulo, Brazil)
2015 Aug. 28.94 UT: m1=6.4, Dia.=15′, DC=3... 7×50 B... Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Moonlight]
2015 Aug. 28.93 UT: m1=6.5, Dia.=10′, DC=4... 20×100 B... Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Moonlight]
2015 Aug. 28.92 UT: m1=6.5, Dia.=8′, DC=3/... 15×70 B... Willian Souza (Sao Paulo, Brazil)
2015 Aug. 28.91 UT: m1=6.8:, Dia.=7′, DC=3/... 7-cm R (28x)... Alexandre Amorim (Florianopolis, Brazil) [moonlight]
2015 Aug. 27.99 UT: m1=6.5, Dia.=10′, DC=2... 5-cm R (25x)... Alexandre Amorim (Florianopolis, Brazil)[moonlight]
2015 Aug. 26.96 UT: m1=6.5, Dia.=10′, DC=3/... 15×70 B... Willian Souza (Sao Paulo, Brazil) [Moonlight interference]
2015 Aug. 26.94 UT: m1=6.6, Dia.=10′, DC=3... 10-cm R f/5 (25x)... Willian Souza (Sao Paulo, Brazil) [Moonlight interference]
2015 Aug. 24.18 UT: m1=6.5, Dia.=10′, DC=3... 7×50 B... Marco Antonio Coelho Goiato (Araçatuba, Brazil) [IL]
2015 Aug. 24.17 UT: m1=6.6, Dia.=8′, DC=3/... 20×100 B... Marco Antonio Coelho Goiato (Araçatuba, Brazil) [IL]
2015 Aug. 23.08 UT: m1=6.7, Dia.=8’, DC=4, Tail= not visible... 25-cm SCT (40x)... Alberto Anunziato (Oro Verde, Argentina)
2015 Aug. 22.90 UT: m1=6.6, Dia.=7′, DC=4... 10×50 B... Alexandre Amorim (Florianopolis, Brazil)[moonlight, nebulosity]
2015 Aug. 22.465 UT: m1=7.4, Dia.=8’, DC=4... 11.4-cm L f8 (43x)... Rob Kaufman (Bright, Victoria, Australia) [Very faint outer coma, brighter inner coma with small bright central condensation visible in averted vision.  Very faint, short broad Tail appeared to extend roughly easterly but difficult to assign P.A. with any accuracy.  Moonlight interference]
2015 Aug. 21.11 UT: m1=6.6, Dia.=14′, DC=4... 7×50 B... Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Aug. 20.12 UT: m1=6.8, Dia.=10′, DC=4/, Tail=1º in PA: 75º... 20×100 B... Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Aug. 20.11 UT: m1=6.6, Dia.=15′, DC=4... 7×50 B... Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Aug. 19.92 UT: m1=6.7, Dia.=8′, DC=3... 10×50 B... Alexandre Amorim (Florianopolis, Brazil)[moonlight]
2015 Aug. 19.92 UT: m1=6.8, Dia.=10′, DC=3... 10-cm R f/5 (25x)... Willian Souza (Sao Paulo, Brazil)
2015 Aug. 18.99 UT: m1=6.9, Dia.=10′, DC=3... 11.4-cm L f/4 (25x)... Willian Souza (Sao Paulo, Brazil)
2015 Aug. 18.98 UT: m1=6.8, Dia.=10′, DC=3... 10-cm R f/5 (25x) Willian Souza (Sao Paulo, Brazil)
2015 Aug. 18.97 UT: m1=6.6, Dia.=6.5′, DC=5, Tail= 10 ar-cmin. PA: 70-75 deg ... 25-cm L f/4.5 (67x)... A. Gonzalo Vargas (Cochabamba Bolivia)
2015 Aug. 18.66 UT: m2=11.0 CCD, Dia.=&10.1′, Tail=&19′ in PA: 81 deg ... [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer... A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 Aug. 18.38 UT: m1=7.2, Dia.=13.6’, DC=4... 7×50 B... Chris Wyatt (Walcha, NSW, Australia) [Slight Moonlight interference... Short Tail visible, 16’ in length with centreline position in P.A. 062° approximately, outer coma very diffuse and transparent with a semi-transparent inner coma brightening to a moderately condensed centre. Centre of coma enhances well in Swan Band filter. Through 10” f/5 dob @ x39 the ion Tail traces out to 22’ in length in P.A. 082°, diameter around 7.7’ and a DC of 6, inner coma enhances well in Swan Band filter. The dust Tail is very broad and difficult to determine centreline direction of symmetry]
2015 Aug. 17.12 UT: m1=6.7, Dia.=14′, DC=3/... 7×50 B... Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Aug. 17.08 UT: m1=6.8, Dia.=10′, DC=3... 15×70 B... Willian Souza (Campinas, Brazil)
2015 Aug. 16.02 UT: m1=6.8, Dia.=15′, DC=4, Tail= 0.5 deg ... 10-cm R f/5 (27x)... Willian Souza (Campinas, Brazil) [significant improvement when using comet filter]
2015 Aug. 16.01 UT: m1=6.7, Dia.=15′, DC=4... 7×50 B... Willian Souza (Campinas, Brazil)
2015 Aug. 15.94 UT: m1=6.7, Dia.=14′, DC=4... 7×50 B... Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Aug. 15.50 UT: m1=7.1... 6×35 B... David A. J. Seargent (Cowra, NSW, Australia)
2015 Aug. 15.50 UT: m1=-.-, Dia.=4′, Tail= 0.2 degrees PA: 55 deg ... 25×100 B... David A. J. Seargent (Cowra, NSW, Australia)
2015 Aug. 15.00 UT: m1=6.8, Dia.=12′, DC=4... 7×50 B... Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Aug. 14.93 UT: m1=6.7, Dia.=9′, DC=3... 10×50 B... Alexandre Amorim (Florianopolis, Brazil)
2015 Aug. 13.94 UT: m1=6.8, Dia.=12′, DC=4... 7×50 B... Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Aug. 13.92 UT: m1=7.0, Dia.=7′, DC=3... 7-cm R (22x)... Alexandre Amorim (Florianopolis, Brazil)[close to TYC 9317-1070-1]
2015 Aug. 13.77 UT: m1=7.1, Dia.=11.4’, DC=4... 7×50 B... Chris Wyatt (Walcha, NSW, Australia) [Coma diffuse, slightly brighter and moderately condensed centre, slight enhancement in Swan Band filter. No Tail]
2015 Aug. 13.09 UT: m1=7.1, Dia.= 5′, DC=3... 8-cm f/7.5 L (26x)... Willian Souza (Sao Paulo, Brazil)
2015 Aug. 13.08 UT: m1=7.0, Dia.=5′, DC=3... 15×70 B... Willian Souza (Sao Paulo, Brazil)
2015 Aug. 13.04 UT: m1=6.8, Dia.=12′, DC=4... 7×50 B... Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Aug. 12.94 UT: m1=7.0, Dia.=7′, DC=3... 7-cm R (22x)... Alexandre Amorim (Florianopolis, Brazil)
2015 Aug. 12.22 UT: m1=7.0, Dia.=8′, DC=4/... Tail= 40 arcmin in PA: 15º... 20×100 B... Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Aug. 12.21 UT: m1=6.9, Dia.=12′, DC=4... 7×50 B... Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Aug. 11.04 UT: m1=6.9, Dia.=14′, DC=4... 7×50 B... Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Aug. 10.96 UT: m1=7.0, Dia.=6′, DC=3... 7-cm R (22x)... Alexandre Amorim (Florianopolis, Brazil)
2015 Aug. 10.00 UT: m1=7.0, Dia.=12′, DC=4... 7×50 B... Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Aug. 08.52 UT: m1=6.9... 10×50 B... David A. J. Seargent (Cowra, NSW, Australia)
2015 Aug. 08.04 UT: m1=7.0, Dia.=12′, DC=4... 7×50 B... Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Aug. 07.39 UT: m1=7.3, Dia.=10.5’, DC=4... 7×50 B... Chris Wyatt (Walcha, NSW, Australia) [Coma dims slightly using Swan Band filter with the centre slightly enhancing. Coma elongated to the North. Magnitude 9.5 star in coma 5’ away from centre in P.A. 179°. Tail not visible in 7×50 B’s but visible in the 10” f/5 dob at x39, semi-transparent and 13.5’ in length in P.A. 350°, 10’ in width at its extremity, 3.8’ diameter coma with a DC of 6]
2015 Aug. 07.10 UT: m1=7.2, Dia.=5′, DC=3... 8-cm R f/7.5 (33x)... Willian Souza (Sao Paulo, Brazil)
2015 Aug. 07.08 UT: m1=7.1, Dia.=12′, DC=4... 7×50 B... Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Aug. 07.00 UT: m1=7.2, Dia.=5′, DC=2... 7-cm R (22x)... Alexandre Amorim (Florianopolis, Brazil)
2015 Aug. 07.00 UT: m1=7.6, Dia.=6´, DC=5, Tail= 13 arcmin PA: 330 deg ... 25-cm L f/4.5 (67x)... A. Gonzalo Vargas (Cochabamba Bolivia)
2015 Aug. 06.08 UT: m1=7.1, Dia.=12′, DC=4... 7×50 B... Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Aug. 05.12 UT: m1=7.5:... 10×50 B... Alexandre Amorim (Florianopolis, Brazil) [very close to TYC9324-1415-1]
2015 Aug. 05.10 UT: m1=7.3, Dia.=5′, DC=4... 8-cm R f/7.5 (33x)... Willian Souza (Sao Paulo, Brazil)
2015 Aug. 05.06 UT: m1=7.1:, Dia.=10′, DC=4... 7×50 B... Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Comet very near a star with m1: 7.05]
2015 Aug. 04.02 UT: m1=7.2, Dia.=10′, DC=4... 7×50 B... Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Aug. 02.98 UT: m1=7.3, Dia.=8′, DC=4... 7×50 B... Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Aug. 02.21 UT: m1=7.4, Dia.=8′, DC=4/... 20×100 B... Marco Antonio Coelho Goiato (Araçatuba, Brazil) [ Moonlight ]
2015 Aug. 02.19 UT: m1=7.7, Dia.=4’, DC=3, Tail= not visible... 25-cm SCT (40x)... Alberto Anunziato (Oro Verde, Argentina)
2015 July 27.10 UT: m1=8.2, Dia.=3′, DC=4... 7-cm R (22x)... Alexandre Amorim (Florianopolis, Brazil) [moonlight]
2015 July 27.09 UT: m1=8.2, Dia.=3′, DC=4... 8-cm R f/7.5 (26x)... Willian Souza (Sao Paulo, Brazil)
2015 July 26.25 UT: m1=7.9, Dia.=8′, DC=4... 7×50 B... Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 July 26.24 UT: m1=8.0, Dia.=7′, DC=4/... 20×100 B... Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 July 26.11 UT: m1=8.2, Dia.=4′, DC=6... 10×50 B... Alexandre Amorim (Florianopolis, Brazil) [moonlight, close to TYC 8834-859-1]
2015 July 24.20 UT: m1=8.0, Dia.=8′, DC=4... 7×50 B... Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 July 24.19 UT: m1=8.1, Dia.=7′, DC=4/... 20×100 B... Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 July 22.22 UT: m1=8.5, Dia.=7′, DC=4... 10×50 B... Alexandre Amorim (Florianopolis, Brazil)
2015 July 21.20 UT: m1=8.8, Dia.=4’, DC=5... 25-cm SCT (40x)... Alberto Anunziato (Oro Verde, Argentina) [coma elongada en una muy difusa Tail]
2015 July 20.82 UT: m2=11.6 CCD, Dia.=&10.7′, Tails=&5.7′ in PA: 340 deg. (dust), &30′ in PA: 288 deg. (ion)... [T12] 0.11m f/5.0 refractor + CCD... A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 July 17.14 UT: m1=9.4, Dia.=3.6´, DC=4... 25-cm L f/4.5 (67x)...  A. Gonzalo Vargas  (Cochabamba Bolivia) [Coma elongada en dirección AP: 275 grados]
2015 July 16.55 UT: m1=9.0, Dia.=4.0′, DC=5, Tail= 6′ in PA: 300˚... 41-cm L f/4.5 (64x)... John Drummond (Gisborne, New Zealand) [Comet easy to see with 41-cm. Elongated coma with faint Tail. Comet 57 degrees altitude in the SE. Clear, dark rural sky, LM 6.5]
2015 July 14.17 UT: m1=9.0, Dia.=5′, DC=4/... 20×100 B... Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 July 13.59 UT: m1=9.6, Dia.=2.5′, DC=6... 13-cm L... Stephen McCann (Waikoloa, Hawaii, USA) [quite stellar in appearance with no Tail]
2015 July 12.29 UT: m1=9.1, Dia.=5′, DC=4/... 20×100 B... Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 July 11.25 UT: m1=9.2, Dia.=5′, DC=4... 20×100 B... Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 July 10.23 UT: m1=9.4, Dia.=4′, DC=5... 22-cm L (60x)... Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 July 08.53 UT: m1=9.6, Dia.=3′, DC=5... 25×100 B... David A. J. Seargent (Cowra, NSW, Australia)
2015 July 07.55 UT: m1=10.1, Dia.=3.0′, DC=5/... 30-cm f/5 Dobson 25mm... Con Stoitsis (Nagambie, Australia) [Coma elongated PA: 258. Coma not quite stellar in appearance, and more defussed towards the edges. I couldn’t make out a Tail?]
2015 July 07.50 UT: m1=9.6, Dia.=3.6’, DC=6... 25-cm L f:5 (39x)... Chris Wyatt (Walcha, NSW, Australia) [Coma dims in Swan Band filter but centre of coma and central condensation still visible. Coma elongated in P.A. 262° (ion Tail forming) and also in P.A. 331° (dust Tail?), best visible at x83 magnification. Outer coma diffuse and transparent, brightens to an opaque inner coma with a small stellar central condensation. Low altitude = 13.3°]
2015 July 05.22 UT: m1=9.8, Dia.=3’, DC=2, Tail= not visible... 25-cm SCT (62x)... Alberto Anunziato (Oro Verde, Argentina)
2015 June 29.22 UT: m1=10.0, Dia.=3′, DC=4/... 22-cm L (60x)... Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Moonlight]
2015 June 28.37 UT: m1=10.0, DC=3... 18-cm L (57x)... Alexandre Amorim (Florianopolis, Brazil)
2015 June 27.75 UT: m1=10.0, Dia.=3.3’, DC=5/... 25-cm L f:5 (39x)... Chris Wyatt (Walcha, NSW, Australia) [Coma dims slightly using Swan Band filter. Borad fan-like extension to the West approximately. Bright opaque inner coma, sometimes stellar in good seeing, pale-blue in colour. Outer coma transparent and faint]
2015 June 27.74 UT: m1=10.4:, Dia.=4’, DC=5/... 25-cm L f:5 (39x)... Chris Wyatt (Walcha, NSW, Australia) [Coma elongated to the West approximately... Magnitude uncertain due to cloud interference]
2015 June 27.37 UT: m1=9.9, Dia.=3′, DC=4... 18-cm L (57x)... Alexandre Amorim (Florianopolis, Brazil)
2015 June 26.22 UT: m1=10.2, Dia.=3′, DC=5... 22-cm L (60x)... Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Enhancement with Swan band filter]
2015 June 22.77 UT: m1=10.3, Dia.=2.0′, DC=5... 40.6-cm L f/4 (76x)... Paul Camilleri (Warners Bay, Australia)
2015 June 22.76 UT: m1=10.2, Dia.=3.5’, DC=6... 25-cm L f:5 (39x)... Chris Wyatt (Walcha, NSW, Australia) [Coma elongated to the West... Small bright central condensation whitish in colour, opaque inner coma. Coma dims, especially the centre, with Swan Band filter. Appears in same field as galaxy NGC 7793 22’ away in PA: 171°]
2015 June 22.21 UT: m1=10.3, Dia.=2.5′, DC=5... 22-cm L (60X)... Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 June 21.80 UT: m1=10.3, Dia.=2.0′, DC=5... 40.6-cm L f/4 (76x)... Paul Camilleri (Warners Bay, Australia)
2015 June 21.22 UT: m1=10.0, Dia.=2.5’, DC=3, Tail: not visible... 25-cm SCT (40x)... Alberto Anunziato (Oro Verde, Argentina)
2015 June 20.23 UT: m1=10.5, Dia.=2.5′, DC=5... 22-cm L (60X)... Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Little enhancement with Swan band filter]
2015 June 19.642 UT: m1=10.5, Dia.=1.5’, DC=5... 11.4-cm L f8 (43x)... Rob Kaufman (Bright, Victoria, Australia] [Small and moderately condensed. Method= M]
2015 June 19.61 UT: m1=10.6, Dia.=3.9’, DC=6... 25-cm L f:5 (39x)... Chris Wyatt (Walcha, NSW, Australia) [Coma elongated to the SW... Bright stellar central condensation, inner coma opaque and fading to transparent outer coma. Dims using Swan Band filter]
2015 June 17.79 UT: m1=10.4, Dia.=1.8′, DC=5... 40.6-cm L f/4 (76x)... Paul Camilleri (Warners Bay, Australia)
2015 June 14.80 UT: m1=10.7, Dia.=1.8′, DC=5... 40.6-cm L f/4 (76x)... Paul Camilleri (Warners Bay, Australia)
2015 June 13.83 UT: m1=10.8: CCD Dia.=2.2′... [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer... A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2015 June 13.29 UT: m1=10.6, Dia.=2′, DC=4/... 22-cm L (60X)... Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Little or no enhancement with Swan band filter]
2015 June 08.79 UT: m1=11.3, Dia.=1.6′, DC=4... 40.6-cm L f/4 (76x)... Paul Camilleri (Warners Bay, Australia)
2015 June 07.27 UT: m1=10.9, Dia.=2′, DC=4/... 22-cm L (60X)... Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Moonlight]
2015 June 06.80 UT: m1=11.5, Dia.=1.3′, DC=4... 40.6-cm L f/4 (76x)... Paul Camilleri (Warners Bay, Australia)
2015 June 05.76 UT: m1=11.6, Dia.=1.3′, DC=4... 40.6-cm L f/4 (76x)... Paul Camilleri (Warners Bay, Australia)
2015 June 04.75 UT: m1=11.8, Dia.=0.9’, DC=4... 25-cm L f:5 (83x)... Chris Wyatt (Walcha, NSW, Australia) [Moonlight... Close to mag 11.3 star, coma diffuse with brighter inner coma, moderately condensed centre, no Tail]
2015 June 03.77 UT: m1=11.4, Dia.=1.4′, DC=4... 40.6-cm L f/4 (76x)... Paul Camilleri (Warners Bay, Australia)
2015 June 02.75 UT: m1=11.6, Dia.=1.4′, DC=4... 40.6-cm L f/4 (76x)... Paul Camilleri (Warners Bay, Australia)
2015 June 01.79 UT: m1=11.4, Dia.=1.5′, DC=4... 40.6-cm L f/4 (76x)... Paul Camilleri (Warners Bay, Australia)
2015 June 01.75 UT: m1=11.6, Dia.=1.1’, DC=4... 25-cm L f:5 (83x)... Chris Wyatt (Walcha, NSW, Australia) [Moonlight... Outer coma enhances slightly in Swan Band filter but otherwise does not enhance overall... diffuse outer coma brightening to an opaque, weakly condensed inner coma. No Tail]
2015 May  31.76 UT: m1=11.4, Dia.=1.6′, DC=4... 40.6-cm L f/4 (76x)... Paul Camilleri (Warners Bay, Australia)
2015 May  25.78 UT: m1=11.6, Dia.=1.3′, DC=4... 40.6-cm L f/4 (76x)... Paul Camilleri (Warners Bay, Australia)
2015 May  24.33 UT: m1=11.0:, Dia.=1.5′, DC=4/... 22-cm L (160X)... Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Very near a star with m1: 9.08, no enhancement with Swan band filter]
2015 May  14.74 UT: m1=12.3, Dia.=1’, DC=6... 25-cm L f:5 (83x)... Chris Wyatt (Walcha, NSW, Australia) [Moonlight... Coma diffuse, gradually brightening to opaque inner coma and a faint stellar central condensation. Also visible at x39 but not easily able to do observation due to faint stars nearby. Coma appears slightly elongated to the NW approximately, does not enhance in Swan Band filter]
2015 May  13.79 UT: m1=11.6, Dia.=1.2′, DC=4... 40.6-cm L f/4 (76x)... Paul Camilleri (Warners Bay, Australia)
2015 May  12.79 UT: m1=11.4, Dia.=1.3′, DC=4... 40.6-cm L f/4 (165x)... Paul Camilleri (Warners Bay, Australia)
2015 May  11.80 UT: m1=11.6, Dia.=1.3′, DC=4... 40.6-cm L f/4 (165x)... Paul Camilleri (Warners Bay, Australia)
2015 May  10.80 UT: m1=11.4, Dia.=1.5′, DC=4... 40.6-cm L f/4 (165x)... Paul Camilleri (Warners Bay, NSW, Australia)
2015 May  09.79 UT: m1=11.7, Dia.=1.2′, DC=4... 40.6-cm L f/4 (165x)... Paul Camilleri (Warners Bay, NSW, Australia)
2015 May  08.78 UT: m1=11.8, Dia.=1.2′, DC=3/... 40.6-cm L f/4 (165x)... Paul Camilleri (Warners Bay, NSW, Australia)
2015 May  08.75 UT: m1=12.2, Dia.=1.0’, DC=4... 25-cm L f:5 (83x)... Chris Wyatt (Walcha, NSW, Australia) [Moonlight... Coma diffuse with slightly brighter central condensation... no Tail. Does not enhance in Swan Band filter]
2015 May  07.81 UT: m1=11.8, Dia.=1.2′, DC=3... 40.6-cm L f/4 (165x)... Paul Camilleri (Warners Bay, NSW, Australia)
2015 May  06.75 UT: m1=11.9 , Dia.=1.1’, DC=3... 25-cm L f:5 (83x)... Chris Wyatt (Walcha, NSW, Australia) [Moonlight... Coma diffuse with slightly brighter but weakly condensed centre... No Tail. Improved seeing conditions made it much easier to see than my previous observation]
2015 May  05.73 UT: m1=12.1:, Dia.=1’, DC=3/... 25-cm L f:5 (83x)... Chris Wyatt (Walcha, NSW, Australia) [Moonlight... Very difficult, magnitude uncertain due to moonlight. Visible in good seeing... no Tail. Coma shows as a faint smudge with a slightly brighter centre. Outer coma washed out by moonlight into background sky. Observed over a 40 minute period, does not enhance in Swan Band filter]
2015 May  01.34 UT: m1=12.2, Dia.=2′, DC=4/... 22-cm L (160x)... Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Not enhanced with Swan band filter]
2015 Apr. 27.73 UT: m1=12.6, Dia.=1’, DC=4/... 25-cm L f:5 (83x)... Chris Wyatt (Walcha, NSW, Australia) [Coma small and diffuse with a slightly brighter, moderately condensed centre. Does not enhance in Swan Band filter... No Tail]
2015 Abr. 26.78 UT: m1=12.8, Dia.=1.2′, DC=4... 40.6-cm L f/4 (165x)... Paul Camilleri (Warners Bay, NSW, Australia)
2015 Abr. 25.78 UT: m1=12.8, Dia.=1.2′, DC=4... 40.6-cm L f/4 (165x)... Paul Camilleri (Warners Bay, NSW, Australia)
2015 Apr. 24.79 UT: m1=12.4 CCD, Dia.=1.0′... [T17] 0.43-m f/6.8 astrograph + CCD... A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely Siding Spring, Australia)
2015 Apr. 19.82 UT: m2=12.7 DSLR, Dia.=0.5′, DC=8... Canon 60Da + Sigma lens... Michael Mattiazzo (Swan Hill, Victoria, Australia) [White in appearance – very dusty object. Since this comet is dynamically new, I predict a peak magnitude of 6.0 in Dec15-Jan16, with a brightening rate of n=3]
2015 Apr. 15.77 UT: m1=13.1, Dia.=0.8’, DC=3/... 25-cm L f:5 (83x)... Chris Wyatt (Walcha, NSW, Australia) [Moonlight... Coma edges diffuse, moderately condensed centre, does not enhance in Swan Band filter]
2015 Apr. 12.80 UT: m1=12.6: CCD Dia.=&0.8′... [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer... A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia) [interference by Moon: Moon phase 0.43, altitude 63 deg.]
2015 Jan. 08.42 UT: m1=13.6: CCD, Dia.=&0.6′... [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer... A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia) [in the evening twilight]
2014 Dec. 22.04 UT: m1=14.0: CCD, Dia.=&0.42′, Tail= 0.7′ in PA: 53 deg ... [T20] 0.1-m f/5.0 astrograph + CCD... A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.) [captured in the evening twilight]
2014 Nov. 28.10 UT: m1=[11.6, negaive... 15-cm SCT (75x), Salvador Aguirre (Hermosillo, Sonora, Mexico)
2014 Nov. 17.43 UT: m1=14.1, Dia.=0.8’, DC=3... 25-cm L f:5 (83x)... Chris Wyatt (Walcha, NSW, Australia) [Coma diffuse and even in brightness with small slightly brighter central condensation]
2014 Nov. 16.46 UT: m1=14.3 CCD Dia.=0.39′, Tail=0.5′ in PA: 54 deg ... [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer... A. Novichonok & T. Prystavski (iTelescope observatory, Q62, remotely from Siding Spring, Australia)
2014 Nov. 12.43 UT: m1=14.0, Dia.=0.7’, DC=2... 25-cm L f:5 (83x)... Chris Wyatt (Walcha, NSW, Australia) [Coma diffused, sometimes stellar in good seeing, no Tail]
2014 Oct. 25.45 UT: m1=14.3, Dia.=0.4′, DC=6... 40.0-cm L f/4.5 (257x)... Seiichi Yoshida (Gunma, Japan)
2014 Oct. 22.46 UT: m1=14.3, Dia.=0.9’, DC=3... 35-cm T f:11 (71x)... Chris Wyatt (Armidale, NSW, Australia) [Coma very faint and diffused, no Tail, inner coma slightly brighter but weakly condensed]
2014 Oct. 21.44 UT: m1=14.3, Dia.=0.4’, DC=2/... 25-cm L f:5 (83x)... Chris Wyatt (Walcha, NSW, Australia) [Coma diffuse and small, sometimes shows a faint stellar central condensation in good seeing, no Tail]
2014 Oct. 16.48 UT: m1=14.3, Dia.=0.6’, DC=3... 25-cm L f:5 (83x)... Chris Wyatt (Walcha, NSW, Australia) [Coma small and diffuse, difficult to see due to scintillation, sometimes appears to have a faint stellar central condensation]
2014 Oct. 15.46 UT: m1=14.2, Dia.=0.4’, DC=3... 25-cm L f:5 (166x)... Chris Wyatt (Walcha, NSW, Australia) [Coma diffuse and brighter in centre, very close to bright star, difficult due to scintillation. Slight movement noticeable over 15 minute period, no Tail]
2014 Oct. 12.42 UT: m1=14.3 CCD, Dia.=0.42′, Tail=0.4′ in PA: 46 deg ... [T31] 0.50-m f/6.8 astrograph + CCD + focal reducer... A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2014 Sep. 28.10 UT: m1=14.7, DC=4... Visual 36″ F/3.5... Jean-François Viens (Cd’OA des Monts Notre-Dame, Québec, Canada)
2014 Sep. 14.48 UT: m1=14.3 CCD, Dia.=0.36′, Tail=0.3′ in PA: 53 deg ... [T9] 0.32-m f/7.4 Ritchey-Chretien + CCD... A. Novichonok & T. Prystavski (iTelescope observatory, Q62, remotely from Siding Spring, Australia)
2014 Aug. 31.63 UT: m1=14.4 CCD, Dia.=0.4′... 0.32-m f/7.4 Ritchey-Chretien + CCD... A. Novichonok & T. Prystavski (iTelescope observatory, Q62, remotely from Siding Spring, Australia)
2014 Aug. 28.02 UT: m1=14.2, Dia.=0.4′, DC=7... 40-cm L (230x)... Jakub Cerny (Zachotin, Czech Republic)
2014 Aug. 27.98 UT: m1=14.8, Dia.=0.3’, DC=7... 50.8-cm L (307x)... Sandor Szabo (Hungary)
2014 Aug. 24.20 UT: m1=15.2, DC=4... Visual, 36″ F/3.5... Jean-François Viens (Cd’OA des Monts Notre-Dame, Québec, Canada)
2014 July 19.62 UT: m1=14.8 CCD, Dia.=0.35′... 0.32-m f/7.4 Ritchey-Chretien + CCD... A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2014 June 02.81 UT: m1=15.9: CCD... 0.32-m f/7.4 Ritchey-Chretien + CCD... A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)
2014 May  05.81 UT: m1=16.1 CCD... 0.32-m f/7.4 Ritchey-Chretien + CCD... A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely Siding Spring, Australia) [stellar object]
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