C/2015 F4 (Jacques)

C/2015 F4 (Jacques)
Reported observations:
2015 Nov. 11.84 UT: m1=14.2, Dia.=0.9′, DC=1... 60.3-cm L (244x)... Sandor Szabo (Sopron, Hungary)
2015 Oct. 11.56 UT: m1=13.2, Dia.=0.9′, DC=5... 40.0-cm L f/4.5 (144x)... Seiichi Yoshida (Gunma, Japan)
2015 Oct. 10.79 UT: m1=12.9, Dia.=0.8′, DC=2... 32.0-cm L f/5 (96x)... Uwe Pilz (Leipzig, Germany)
2015 Oct. 05.84 UT: m1=12.4 DSRL, Dia.=2′, DC=2... Digital Reflex+0,3m lens... Giuseppe Pappa (Sicily, Italy)
2015 Nov. 03.73 UT: m1=[12.5, negative... 20-cm L (222.2x)... Artyom Novichonok (Konchezero station, Russia)
2015 Oct. 03.09 UT: m1=12.7: CCD, Dia.=&1.2′, Tail=&1.6′ in PA: 121 deg ... [T20] 0.1-m f/5.0 astrograph + CCD... A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.) [poor quality image: a lot of bad pixels and artefatcs visible]
2015 Sep. 20.88 UT: m1=[11.7, Dia.=1.3′, NEGATIVE (!)... 7.6-cm f/4 L (38x)... Marek Biely (Brno, Czech Republic) [Already not visible. Fainter than 11.7 mag]
2015 Sep. 18.89 UT: m1= 12.2, Dia=2′, DC=3, no tail; 20-cm B(80x)... Carlos Labordena (Castellón, España)
2015 Sep. 17.91 UT: m1=12.4, Dia.=0.7′, DC=5, Tail= 0.03 deg. PA: 121 deg ... 32.0-cm L f/5 (96x)... Uwe Pilz (Leipzig, Germany)
2015 Sep. 17.90 UT: m1=12.3: DSRL, Dia.=&1.0′, Tail=&2.3′ in PA: 135 deg ... 0.20-m f/4 reflector + DSLR camera... Taras Prystavski (Lviv, Ukraine) [Red light pollution zone, Bortle sky class=6]
2015 Sep. 14.86 UT: m1=12.2: CCD, Dia.=2.1′, Tail=6.8′ in PA: 143 deg ... [T16] 0.15-m f/7.3 refractor + CCD... A. Novichonok & T.Prystavski (AstroCamp Observatory, I89 remotely from Nerpio, Spain)
2015 Sep. 08.03 UT: m1=11.5, Dia.=1.3′, DC=3... 20-cm SCT (133x)... Juan José González (Alto del Castro, alt. 1720 m, León, España)
2015 Sep. 05.898 UT: m1=10.8, Dia.=2′, DC=4... 11.4cm L f/8 (45x)... Neil Norman (Ipswich, England)
2015 Aug. 24.92 UT: m1=11.5: DSRL, Dia.=&1.3′, Tail=&2.1′ in PA: 158 deg ... 0.20-m f/4 reflector + DSLR camera... Taras Prystavski (Lviv, Ukraine) [Red light pollution zone, Bortle sky class=6]
2015 Aug. 23.84 UT: m1=–.-: (Tri-G), Dia.=1.5′, Tail=2.7′... Nikon 5200 + 100-mm lens... Artyom Novichonok (Konchezero, Russia)
2015 Aug. 21.90 UT: m1=11.3, Dia.=1.0′, DC=6, Tail=1.5 deg. in PA: 124 deg ... 32.0-cm L f/5 (96x)... Uwe Pilz (Leipzig, Germany)
2015 Aug. 19.90 UT: m1=11.4 CCD, Dia.=1.58′... 6.8-cm R f/3.8... Mieczyslaw L. Paradowski (Lublin, Poland)
2015 Aug. 19.88 UT: m1=11.3: CCD, Dia.=2.4′, Tail=5.0′ in PA: 154 deg ... 0.08-m f/7.5 refractor + CCD... A. Novichonok, T. Prystavski  Konchezero Stn., Republic of Karelia, Russia
2015 Aug. 19.87 UT: m1=11.9 CCD, Dia.=1.81′... 6.8-cm R f/3.8... Mieczyslaw L. Paradowski (Lublin, Poland)
2015 Aug. 18.94 UT: m1=11.0, Dia.=1.5′, DC=4... 20-cm SCT (77x)... Juan José González (Cueto Rosales, alt. 1420 m, León, España)
2015 Aug. 16.93 UT: m1=10.9: CCD, Dia.=&2.7′, Tail=&10.1′ in PA: 167 deg ... 0.07-m f/6 refractor + CCD... A. Novichonok, K. Nezgovorov & T. Prystavski (Petrozavodsk State University Observatory, C30 (Sheltozero Stn., Russia)
2015 Aug. 15.92 UT: m1=10.8, Dia.=2.5′, DC=4, no cola... 20-cm B (50x)... Carlos Labordena (Castellón, España)
2015 Aug. 14.90 UT: m1=10.7: CCD, Dia.=&1.9′, Tail=&3.0′ in PA: 168 deg ... 0.07-m f/6 refractor + CCD... A. Novichonok, K. Nezgovorov & T. Prystavski (Petrozavodsk State University Observatory, C30 (Sheltozero Stn., Russia)
2015 Aug. 13.91 UT: m1=11.8, Dia.=0.6′, DC=6, Tail= 3.0’ long to PA: 115 deg ... 60.3-cm L (244x)... Sandor Szabo (Sopron, Hungary)
2015 Aug. 13.87 UT: m1=10.5, Dia.=1.4′, DC=5... 20×80 B (20x)... Marek Biely (Brno, Czech Republic) [Still visible well]
2015 Aug. 12.88 UT: m1=10.9, Dia.=1.3′, DC=4/, Tail= 1 arcmin. in PA: 150 deg ... 25.5-cm L (70.6x)... Danil Sidorko (Mezmay, Russia)
2015 Aug. 12.86 TU: m1=11.3, Dia.=1.7, DC=3/... 15.2-cm R f/5 (63x)... Maik Meyer (Limburg, Germany)
2015 Aug. 12.83 UT: m1=10.9, Dia.=1.5′, DC=4/, Tail= 1.7 arcmin. in PA: 160 deg ... 25.5-cm L (120x)... Danil Sidorko (Mezmay, Russia)
2015 Aug. 11.85 UT: m1=11.0 DSRL, Dia.=2′, DC=5... Digital Reflex+0,3m lens... Giuseppe Pappa (Sicily, Italy)
2015 Aug. 10.88 UT: m1=10.6, Dia.=0.9′, DC=6/... 20×80 B... Marek Biely (Brno, Czech Republic) [Nice tiny and very condensed object located near the zenith. Easy target for binoculars despite the brightness]
2015 Aug. 08.94 UT: m1=10.8, Dia.=1.5′, DC=5... 20-cm SCT (77x)... Juan José González (Cueto Rosales, alt. 1420 m, León, España) [Observable un corto tramo de cola en A.P. 160º]
2015 Aug. 08.91 UT: m1=11.3, Dia.=1.0′, DC=7/... 25×100 B... Jakub Cerny (Senohraby, Czech Republic)
2015 Aug. 08.81 UT: m1=10.8, Dia.=1.5′, DC=3.5, Tail= 2 arcmin. in PA: 153 deg ... 25.5-cm L (70.6x)... Danil Sidorko (Mezmay, Russia)
2015 Aug. 07.87 UT: m2=13.3 DSRL, Dia.=&1.0′, Tail=&1.7′ in PA: 149 deg ... 0.20-m f/4 reflector + DSLR camera... Taras Prystavski (Lviv, Ukraine) [Red light pollution zone, Bortle sky class=6]
2015 Aug. 07.83 UT: m1=11.3, Dia.=1.5′, DC=3... 15.2-cm R f/5 (63x)... Maik Meyer (Limburg, Germany)
2015 Aug. 07.06 UT: m1=10.5, Dia.=2.5′, DC=4... 22-cm L (60x)... Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 Aug. 06.89 UT: m1=11.5, Dia.=1.4′, DC=6, Tail= 2 arcmin. PA: 203 deg ... 32-cm L f/5 (96x)... Uwe Pilz (Leipzig, Germany)
2015 Aug. 06.88 UT: m1=11.4:, Dia.=1.3′, DC=3... 15.2-cm R f/5 (63x)... Maik Meyer (Limburg, Germany)
2015 Aug. 05.04 UT: m1=10.3, Dia.=2.5′, DC=3/... 22-cm L (60x)... Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 July 29.01 UT: m1=10.9, Dia.=1.3′, DC=3/... 15.0-cm R f/5 (63x)... Maik Meyer (Limburg, Germany)
2015 July 26.22 UT: m1=10.6, Dia.=2′, DC=4... 22-cm L (60X)... Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 July 26.10 UT: m1=10.5... 18-cm L (45x)... Alexandre Amorim (Florianopolis, Brazil) [moonlight]
2015 July 26.03 UT: m1=11.0, Dia.=2.1, DC=4/... 15.0-cm R  f/5 (63x)... Maik Meyer (Limburg, Germany)
2015 July 23.85 UT: m1=10.8, Dia.=1.5’, DC=6... 25.4-cm L (60x)... Vyacheslav M. Ivanov (Kamysin, Russia) [Small and very compact coma, wind 1-2m/s, t +13°C. LM=6.5m]
2015 July 22.13 UT: m1=10.4, Dia.=2′, DC=5... 18-cm L (45x)... Alexandre Amorim (Florianopolis, Brazil)
2015 July 21.87 UT: m1=10.8 DSRL, Dia.=2′, DC=4... Digital Reflex+0,3m lens... Giuseppe Pappa (Sicily, Italy)
2015 July 19.03 UT: m1=11.0, Dia.=0.7′, DC=6, Tail=4′ PA: 190 deg ... 25-cm L (65x)... Valentín Díaz (Puebla de Don Fadrique, Granada, España)
2015 July 18.92 UT: m1=10.4, Dia.=2.3′, DC=3/... 15.0-cm R f/5 (63x)... Maik Meyer (Limburg, Germany)
2015 July 18.90 UT: m1=10.8, Dia.=0.6′, DC=6, Tail= 3’ to PA: 205 deg ... 60.3 cm L (187x)... Sandor Szabo (Sopron, Hungary)
2015 July 17.96 UT: m1=10.9, Dia.=1′, DC=3... 30.5-cm L f/4,9 (93x)... J. P. Navarro Pina (El Palmar, Murcia, Spain)
2015 July 16.87 UT: m1=10.7, Dia.=2′, DC=4/... 15.0-cm R f/5 (63x)... Maik Meyer (Frauenstein, Erzgebirge Mts., Germany)
2015 July 18.03 UT: m1=10.5, Dia.=2.2′, DC=4/... 15.0-cm R f/5 (63x)... Maik Meyer (Limburg, Germany)
2015 July 16.83 UT: m1=11.0 CCD, Dia.=2.5′, DC=5... Digital Reflex+0,3m lens... Giuseppe Pappa (Sicily, Italy)
2015 July 15.83 UT: m1=11.2, Dia.=1′, DC=2/, Tail=1.5 arcmin in PA: 195 deg ... 25.5-cm L (120x)... Danil Sidorko (Korenovsk, Russia)
2015 July 14.86 UT: m1=11.2 DSRL, Dia.=2′, DC=4... Digital Reflex +0,3m lens... Giuseppe Pappa (Sicily, Italy)
2015 July 14.14 UT: m1=10.8, Dia.=2.5′, DC=4... 22-cm L (60x)... Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 July 14.05 UT: m1=10.7, Dia.=2.2′, DC=5, Tail=0.1º en AP: 210 deg ... 20-cm SCT (77x)... Juan José González (Santiago Millás, alt. 930 m, León, España)
2015 July 13.85 UT: m1=11.4, Dia.=1.3′, DC=5, Tail=2 arcmin in PA: 210 deg... 25.5-cm L (70.6x)... Danil Sidorko (Korenovsk, Russia)
2015 July 11.97 UT: m2=13.0 CCD, Dia.=&4.3′ Tail=&19.5′ in PA: 211 deg ... [T16] 0.15-m f/7.3 refractor + CCD... A. Novichonok & T. Prystavski (AstroCamp Observatory, I89 remotely from Nerpio, Spain)
2015 July 11.97 UT: m1=10.5, Dia.=0.5′, DC=6, Tail=0.02 deg. PA: 194 deg ... 32.0-cm L f/5 (96x)... Uwe Pilz (Leipzig, Germany)
2015 July 11.93 UT: m1=11.2, Dia.=1.0′, DC=6/, Tail=0.05 deg. in PA: 215 deg ... 35-cm L (178x)... Jakub Černý (Zachotin, Czech Republic)
2015 July 10.95 UT: m1=11.2, Dia.=1.0′, DC=7, Tail= 0.05 deg in PA: 205 deg ... 35-cm L (178x)... Jakub Cerný (Zachotin, Czech Republic)
2015 July 10.92 UT: m1=11.0, m2=13.7 (starlike nucleus), Dia.=1.0′, DC=s6, Tail=0.12 deg. in PA: 205 deg. (a bit fan-shaped)... 25×100 B & 25-cm L (150x)... Gábor Sánta (Zlatibor, Serbia)
2015 July 10.21 UT: m1=11.1, Dia.=2.5′, DC=4... 22-cm L (60x)... Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 July 08.52 UT: m1=11.3, Dia.=2.6′... 25.4-cm L (71x)... David A. J. Seargent (Cowra, NSW, Australia)
2015 July 07.49 UT: m1=11.6, Dia.=1.3’, DC=5/... 25cm L f:5 (83x)... Chris Wyatt (Walcha, NSW, Australia) [Does not enhance in Swan Band filter... Coma shows diffuse edges, opaque inner coma, pale blue in colour. Tail visible 2.3’ in length in PA: 225°]
2015 June 27.73 UT: m1=11.7, Dia.=1.4’, DC=6... 25cm L f:5 (83x)... Chris Wyatt (Walcha, NSW, Australia) [Does not enhance in Swan Band filter... Faint tail 2.5 in length, 1’ in width approximately, in P.A. 221°... Small diffuse coma, opaque inner coma brightening to small stellar centre, m2= 14.3]
2015 June 27.01 UT: m1=11.6, Dia.=2.5′, DC=1... 30.5-cm L f/4.9 (93x)... J. P. Navarro Pina (El Palmar, Murcia, Spain)
2015 June 26.73 UT: m1=11.6, Dia.=2.3’, DC=5... 25cm L f:5 (83x)... Chris Wyatt (Walcha, NSW, Australia) [Does not enhance in Swan Band filter... Coma elongated to the South-West approximately, compact opaque inner coma with diffuse transparent outer coma, central condensation not quite stellar]
2015 June 26.20 UT: m1=11.2, Dia.=2′, DC=4... 22-cm L (60x)... Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2015 June 23.99 UT: m1=11.8, Dia.=2′.1, DC=6... 35-cm L (107x)... Jakub Cerny (Senohraby, Czech Republic)
2015 June 22.78 UT: m1=11.7, Dia.=1.0′, DC=4... 40.6-cm L f/4 (165x)... Paul Camilleri (Warners Bay, Australia)
2015 June 22.75 UT: m1=12.2, Dia.=1.2’, DC=5/... 25cm L f:5 (83x)... Chris Wyatt (Walcha, NSW, Australia) [Coma does not enhance in Swan band filter. Coma elongated to the SW, inner coma opaque and shows elongation to SW, with small central condensation, diffused outer coma]
2015 June 21.79 UT: m1=11.7, Dia.=1.2′, DC=4... 40.6-cm L f/4 (76x)... Paul Camilleri (Warners Bay, Australia)
2015 June 21.01 UT: m1=11.8, Dia.=2′, DC=4, no tail... 15cm T (27x)... Carlos Labordena (Castellón, España)
2015 June 20.28 UT: m1=12.3 CCD, Dia.=0.4’... CCD images unfiltered... Pierre Laporte (Cd’OA des Monts Notre-Dame, Québec, Canada)
2015 June 20.21 UT: m1=11.5, Dia.=2′, DC=4... 22-cm L (120X)... Marco Antonio Coelho Goiato (Araçatuba, Brazil) [No enhancement with Swan band filter]
2015 June 19.60 UT: m1=11.8... Dia.=2.0’... DC=3... 25cm L f:5 (39x)... Chris Wyatt (Walcha, NSW, Australia) [Coma diffuse with slightly brighter centre. At x83 the coma appears elongated to the SW, central condensation sometimes stellar in good seeing. Coma does not enhance in Swan Band filter]
2015 June 18.08 UT: m1=11.4, Dia.=2.5′, DC=4/... 20-cm SCT (77x)... Juan José González (Alto del Castro, alt. 1720 m, León, España) [Más brillante que lo previsto. Movimiento seguido durante 60 minutos. Estrellas de campo comprobadas en el DSS. Estrellas de comparación de la fotometría APASS cercana al cometa. Cielo muy claro de montaña]
2015 June 17.77 UT: m1=12.2, Dia.=1.0′, DC=4... 40.6-cm L f/4 (76x)... Paul Camilleri (Warners Bay, Australia)
2015 June 14.79 UT: m1=12.5, Dia.=1.0′, DC=4... 40.6-cm L f/4 (76x)... Paul Camilleri (Warners Bay, Australia)
2015 June 14.37 UT: m1=12.0 CCD, Dia.=1.8′, Tail=5.5′ in PA: 231 deg ... [T20] 0.1-m f/5.0 astrograph + CCD... A. Novichonok & T. Prystavski (iTelescope observatory, H06 remotely from Mayhill, U.S.A.)
2015 June 08.78 UT: m1=12.9, Dia.=0.6′, DC=4... 40.6-cm L f/4 (165x)... Paul Camilleri (Warners Bay, Australia)
2015 May  31.81 UT: m1=13.2, Dia.=0.8′, DC=4... 40.6-cm L f/4 (165x)... Paul Camilleri (Warners Bay, Australia)
2015 May  25.73 UT: m1=13.4, Dia.=0.5′, DC=4... 40.6-cm L f/4 (165x)... Paul Camilleri (Warners Bay, Australia)
2015 May  23.74 UT: m1=13.7, Dia.=0.4′, DC=3/... 40.6-cm L f/4 (165x)... Paul Camilleri (Warners Bay, Australia)
2015 May  15.76 UT: m1=13.8, Dia.=0.5′, DC=3... 40.6-cm L f/4 (165x)... Paul Camilleri (Warners Bay, Australia)
2015 Apr. 24.71 UT: m1=14.8 CCD, Dia.=0.50′, Tail=2.1′ in PA 236 deg .. [T12]0.11m f/5.0 refractor + CCD... A. Novichonok & T. Prystavski (iTelescope observatory, Q62 remotely from Siding Spring, Australia)