103P/Hartley 2

103P/Hartley 2
Reported observations:
2011 Mar. 30.81 UT: m1=15.7 CCD, Dia.=0.25′, DC=4... 41-cm L f:3.8 + CCD... Sergey Shurpakov (A98, Baran’, Belarus)
2011 Mar. 07.01 UT: m1=12.5, Dia.=1.2′, DC=3... 20-cm SCT (133x)... Juan José González (Aralla, alt. 1430 m., León, España) [Estrellas de campo comprobadas en el DSS. Estrellas de comparación de la fotometría TASS. Cielo muy claro de montaña]
2011 Feb. 05.06 UT: m1=11.0, Dia.=2.5′, DC=2... 20-cm SCT (133x)... Juan José González (Valle Peral – Lena, alt. 940 m., Asturias, España)
2011 Jan. 24.89 UT: m1=10.2, Dia.=3′, DC=2/... 20-cm SCT (100x)... Juan José González (Pandorado, alt. 1190 m., León, España)
2011 Jan. 15.16 UT: m1=9.5, Dia.=5′, DC=2... 20-cm SCT (77x)... Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España) [Varias estrellas dentro de la coma, con mag. 10.3 (TK) para la más brillante]
2011 Jan. 04.125 UT: m1=9.3, Dia.=10′, DC=2... 20×100 B... Marco Goiato (Araçatuba, Brasil) [próximo a estrela com m1: 6.82]
2011 Jan. 04.00 UT: m1=9.0:, Dia.=5′... 18-cm L (57x)... Alexandre Amorim (Florianopolis, Brazil)
2010 Dec. 31.46 UT: m1=9.2, Dia.=6′, DC= 2/3... 25-cm L f:5 (39x)... Chris Wyatt (Walcha, NSW, Australia) [Coma diffuse. Comp Star= TYC 5965-580-1 Method= S. Cat= TJ]
2010 Dec. 31.04 UT: m1=8.8, Dia.=10′, DC=2... 20×60 B... Willian Souza (Santos, Brazil)
2010 Dec. 30.48 UT: m1=9.5, Dia.=5.5′, DC= 3... 25-cm L f:5 (39x)... Chris Wyatt (Walcha, NSW, Australia) [Coma appears smaller than the last observation, background stars in coma. Comp Star= TYC 5965-17-1 Method= S. Cat= TJ]
2010 Dec. 30.135 UT: m1=9.1, Dia.=12′, DC=2... 20×100 B... Marco Goiato (Araçatuba, Brasil)
2010 Dec. 30.125 UT: m1=9.2, Dia.=10′, DC=3/... 22-cm L f:6.5 (60x)... Marco Goiato (Araçatuba, Brasil)
2010 Dec. 29.48 UT: m1=8.4, Dia.=8.5′, DC= 3... 25-cm L f:5 (39x)... Chris Wyatt (Walcha, NSW, Australia) [No tail, coma diffuse. Comp Star= TYC 5969-974-1 Method= S. Cat= TJ]
2010 Dec. 27.99 UT: m1=8.3, Dia.=10′, DC=2... 20×60 B... Willian Souza (Aguas de Lindoia, Brazil)
2010 Dec. 15.54 UT: m1=7.5, Dia.=15′, DC=2... 7×50 B... Chris Wyatt (Walcha, NSW, Australia) [No tail, coma diffuse. Comp Star= TYC 5987-557-1: Method= S: Cat= TJ]
2010 Dec. 14.52 UT: m1=8.0, Dia.=17′, DC=2... 7×50 B... Chris Wyatt (Walcha, NSW, Australia [No tail, coma slightly condensed. Comp Star= TYC 5987-1775-1: Method= S: Cat= AU]
2010 Dec. 14.12 UT: m1=7.6, Dia.=12′, DC=3... 25×100 B... Juan José González (Aralla, alt. 1440 m., León, España)
2010 Dec. 12.54 UT: m1=7.5, Dia.=10′, DC=1... 7×50 B... Chris Wyatt (Walcha, NSW, Australia) [No tail, coma diffuse. Comp Star= TYC 5987-3116-1: Method= S: Cat= TJ]
2010 Dec. 12.53 UT: m1=8.3, Dia.=9.6′, DC= 4... 25-cm L f:5 (39x)... Chris Wyatt (Walcha, NSW, Australia) [No tail, coma shows small central condensation with a bar-like feature extending West within the coma, outer coma appears offset to the North. Comp Star= TYC 5983-487-1: Method= S: Cat= TJ]
2010 Dec. 11.55 UT: m1=7.9, Dia.=8´, DC=3... 25×100 B... David A. J. Seargent (The Entrance, NSW, Australia)
2010 Dec. 11.53 UT: m1=7.7, Dia.=20′, DC=1/... 7×50 B... Chris Wyatt (Walcha, NSW, Australia) [No tail. Comp Star= TYC 5987-216-1: Method= S: Cat= TJ]
2010 Dec. 11.05 UT: m1=7.4, Dia.=12′, DC=2/... 25×100 B... Juan José González (El Fito – Sierra del Sueve, alt. 570 m., Asturias, España)
2010 Dec. 09.145 UT: m1=7.4, Dia.=15′, DC=2... 7×50 B... Marco Goiato (Araçatuba, Brasil)
2010 Dec. 07.51 UT: m1= 7.6, Dia.=12´... 10×50 B... David A. J. Seargent (The Entrance, NSW, Australia)
2010 Dec. 07.156 UT: m1=7.3, Dia.=15′, DC=2... 7x50B: Marco Goiato (Araçatuba, Brasil)
2010 Dec. 05.167 UT: m1=7.6, Dia.=12′, DC=3... 20×100 B... Marco Goiato (Araçatuba, Brasil) [Nebulosidade]
2010 Dec. 04.78 UT: m1=7.6, Dia.=11′, DC=6... 40-cm L f:4 (36x)... Seiichi Yoshida (Kita-karuizawa, Gunma, Japan)
2010 Dec. 04.09 UT: m1= 7.5, Dia.=10′, DC=3, no tail... 11×80 B... Carlos Labordena (Castellón, España)
2010 Dec. 04.05 UT: m1=7.2, Dia.=15′, DC=3... 10×50 B... Juan José González (Puente del Embalse de Barrios de Luna, alt. 1120 m., León, España)
2010 Nov. 29.00 UT: m1=7.1, Dia.=12′, DC=3/... 10×50 B... Juan José González (Puerto de Aralla, alt. 1545 m., León, España ) [Antes del orto lunar. Altura sobre el horizonte: 16º]
2010 Nov. 28.09 UT: m1=7.0:, Dia.=10′, DC=1... 20×80 B... Alexandre Amorim (Florianopolis,Brazil) [clouds]
2010 Nov. 17.29 UT: m1=6.7, Dia.=10′, DC=2/... 10×50 B... Alexandre Amorim (Florianopolis, Brazil)
2010 Nov. 16.02 UT: m1=6.5, Dia.=10′, DC=4... 25-cm reflector (60x)... Vyacheslav Ivanov (Peschanka, Russia)
2010 Nov. 15.250 UT: m1=6.2, Dia.=20′, DC=3... 7x50B... Marco Goiato (Araçatuba, Brasil)
2010 Nov. 14.65 UT: m1=6.9, Dia.=20′, DC=2/3... 7×50 B... Chris Wyatt (Walcha, NSW, Australia) [No tail, coma broad and elongated to North. Comp Star= TYC 5400-4701-1 Method= S. Cat= TJ]
2010 Nov. 14.23 UT: m1=6.0, Dia.=12’, DC=1, Tail= not visible... 20-cm SCT (32x)... Alberto Anunziato (Oro Verde, Argentina) [Mét. Sidgwick, Cat. Tycho II]
2010 Nov. 14.135 UT: m1=6.1, Dia.=22′, DC=3... 7×50 B... Marco Goiato (Araçatuba, Brasil)
2010 Nov. 13.63 UT: m1=6.6, Dia.=11′, DC=5... 25-cm L f:5 (39x)... Chris Wyatt (Walcha, NSW, Australia) [No tail, coma large and ciruclar, edges diffuse, gradual brightening to centre, central condensation not stellar. Comp Star= TYC 4828-2768-1. Method= S. Cat= TJ]
2010 Nov. 13.19 UT: m1=5.3, Dia.=30′, DC=4... monocular 4×30... Juan José González (Collada Llomena – Ponga, alt. 995 m., Asturias, España)
2010 Nov. 12.54 UT: m1=6.3, Dia.=20... 10×50 B... David A. J. Seargent (The Entrance, NSW, Australia)
2010 Nov. 12.23 UT: m1=5.8, Dia.=5′, DC=3... 25-cm L f/4 (45x)... Gonzalo Vargas B (Cochabamba, Bolivia) [Método Bobrovnikoff Estrellas ref.: GSC 4821 2975 (5.60) y GSC 4820 2829 (6.25) Interferencia de luz lunar:no Presencia de nubosidad:no Polución lumínica:si Altura sobre el horizonte: 35grados Visible a simple vista:no Magnitud a simple vista:no MALE a simple vista:5 MALE instrumental:12]
2010 Nov. 12.135 UT: m1=6.0, Dia.=25′, DC=3/... 7x50B... Marco Goiato (Araçatuba, Brasil)
2010 Nov. 11.56 UT: m1=6.1, Dia.=20′, 10×50 B... David A. J. Seargent (The Entrance, NSW, Australia)
2010 Nov. 11.29 UT: m1=6.7, Dia.=12′, DC=3... 20×80 B... Alexandre Amorim (Florianopolis, Brazil)
2010 Nov. 08.64 UT: m1=6.2, Dia.=20’, DC=3/4... 7×50 B... Chris Wyatt (Walcha, NSW, Australia) [Coma large and diffuse, broad fan shaped, elongated to the North, central condensation not stellar but bright and gradual. Faint outer coma visible using averted vision. Comp Star= TYC 4822-3681-1... Method= S... Cat= TJ]
2010 Nov. 08.30 UT: m1=6.6, Dia.=10′, DC=2... 20×80 B... Alexandre Amorim (Florianopolis, Brazil)
2010 Nov. 08.177 UT: m1=5.9, Dia.=30′, DC=3... 8×2.5 B... Marco Goiato (Araçatuba, Brasil)
2010 Nov. 08.167 UT: m1=6.0, Dia.=25′, DC=4... 7×50 B... Marco Goiato (Araçatuba, Brasil)
2010 Nov. 07.30 UT: m1=6.0... 8×30 B... Jose G. de S. Aguiar (Campinas, Brazil)
2010 Nov. 07.30 UT: m1=6.5, Dia.=10′, DC=2... 20×60 B... Willian Souza (Sao Paulo, Brazil)
2010 Nov. 07.29 UT: m1=6.7, Dia.=8′, DC=3... 20×80 B... Alexandre Amorim (Florianopolis, Brazil)
2010 Nov. 07.25 UT: m1=5.5, Dia.=9’, DC=2, Tail= not visible... 20-cm SCT (32x)... Alberto Anunziato (Oro Verde, Argentina) [Mét. Sidgwick, Cat. Tycho II]
2010 Nov. 07.187 UT: m1=6.0, Dia.=20′, DC=4/... 7×50 B... Marco Goiato (Araçatuba, Brasil)
2010 Nov. 05.29 UT: m1=6.8, Dia.=7′, DC=3... 20×80 B... Alexandre Amorim (Florianopolis, Brazil)
2010 Nov. 04.28 UT: m1=6.7:, Dia.=8′... 20×80 B... Alexandre Amorim (Florianopolis, Brazil)
2010 Nov. 04.25 UT: m1=6.3, Dia.=15′, DC=2... 20×60 B... Willian Souza (Sao Paulo, Brazil)
2010 Nov. 04.14 UT: m1=4.8, Dia.=45′, DC=4... Naked Eye... Juan José González (Alto del Castro – Aralla, alt. 1720 m., León,España) [En 20-cm SCT (77x): m2=11.8 (Tycho-2) ancha tail de polvo de 0.2º en PA 290º, embebida en la coma. Cielo muy claro de montaña]
2010 Nov. 03.28 UT: m1=6.3, Dia.=10′, DC=3... 10×50 B... Alexandre Amorim (Florianopolis, Brazil)
2010 Nov. 03.23 TU m1=5.5, Dia.=14′, DC=4... 25-cm L f/4 (45x)... Gonzalo Vargas B (Cochabamba, Bolivia) [Método Bobrovnikoff Estrellas ref.: GSC 753 2754 (5.12) y GSC 7492 885 (5.75) Interferencia de luz lunar:no Presencia de nubosidad:no Polución lumínica:si Altura sobre el horizonte:30 grados. Visible a simple vista:no Magnitud a simple vista:no MALE a simple vista:5 MALE instrumental:12]
2010 Nov. 03.167 UT: m1=5.6, Dia.=30′, DC=2/... 7×50 B... Marco Goiato (Araçatuba, Brasil)
2010 Nov. 02.70 UT: m1=5.6, Dia.=20’, DC=3... 7×50 B... Chris Wyatt (Walcha, NSW, Australia) [Coma appears elongated to the East and West slightly. Not visible naked eye, central condensation gradually intensifies to centre. Comp Star= TYC 759-2861-1 Method= S. Cat= TJ]
2010 Nov. 02.31UT: m1=6.0, Dia.=20´, DC=4, Tail= not visible... 25-cm L (48x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2010 Nov. 02.28 UT: m1=6.0, Dia.=15′, DC=1/... 10×50 B... Alexandre Amorim (Florianopolis, Brazil)
2010 Nov. 02.25 UT: m1=7.1, Dia.=12′, DC=2... 7-cm R (11x)... Isbel González (Guayos, Cuba) [Método Beyer]
2010 Nov. 01.23 UT: m1=5.9, Dia.=12′, DC=0... 10×50 B... Alexandre Amorim (Florianopolis, Brazil)
2010 Nov. 01.06 UT: m1=5.5, Dia.=20′, DC=2... Naked Eye... Vyacheslav Ivanov (observation obtain in 70 km from Antalya, Turkey)
2010 Oct. 31.19 UT: m1=5.9, Dia.=11′, DC=0... 10×50 B... Alexandre Amorim (Florianopolis, Brazil)
2010 Oct. 31.17 UT: m1=5.7, Dia.=15′, DC=4, 20×60 B... Willian Souza (Aguas de Lindoia, Brazil)
2010 Oct. 30.30 UT: m1=5.7... 8×30 B... Jose G. de S. Aguiar (Campinas, Brazil)
2010 Oct. 30.29 UT: m1=6.0, Dia.=15′, DC=2... 20×60 B... Willian Souza (Sao Paulo, Brazil)
2010 Out. 30.146 UT: m1=5.3, Dia.=25′, DC=2/... 7X50 B... Marco Goiato (Araçatuba, Brasil) [Nuvens]
2010 Out. 29.125 UT: m1=5.4, Dia.=20′, DC=2... 7X50 B... Marco Goiato (Araçatuba, Brasil) [Luar]
2010 Oct. 27.29 UT: m1=6.3, Dia.=5′, DC=4... 20×80 B... Alexandre Amorim (Florianopolis, Brazil) [moonlight]
2010 Oct. 26.29 UT: m1=6.1, Dia.=8′, DC=3... 20×80 B... Alexandre Amorim (Florianopolis, Brazil) [moonlight]
2010 Oct. 24.30 UT: m1=6.5, Dia.=7′, DC=4... 20×80 B... Alexandre Amorim (Florianopolis,Brazil) [moonlight]
2010 Out. 21.360 UT: m1=4.8, Dia.=40′, DC=2... 8X25 B... Marco Goiato (Araçatuba, Brasil) [Crepúsculo astronômico]
2010 Out. 21.354 UT: m1=4.9, Dia.=40′, DC=3/... 7X50 B... Marco Goiato (Araçatuba, Brasil) [Crepúsculo astronômico]
2010 Oct. 21.31 UT: m1=5.0, Dia.=30′, DC=2... 7×50 B... Willian Souza (Sao Paulo, Brazil)
2010 Oct. 21.28 UT: m1=5.3... 8×30 B... Jose G. de S. Aguiar (Campinas, Brazil)
2010 Oct. 20.19 UT: m1=4.7, Dia.=45′, DC=4... monocular 4×30... Juan Jose Gonzalez (Alto del Castro – Aralla, alt. 1720 m., León, España) [La proximidad a una estrella de mag. 5.5 (TK) no permitió una adecuada estimación de magnitud a simple vista. En 7x50B: coma de 30′, DC=5. Cielo muy claro de montaña]
2010 Out. 19.353 UT: m1=6.5, Dia.=-‘, DC=-... 8X30 B... Jorge Fidel Cubiles (La Habana, Cuba)
2010 Out. 19.344 UT: m1=4.9, Dia.=40′, DC=2... 8X25 B... Marco Goiato (Araçatuba, Brasil)
2010 Out. 19.333 UT: m1=5.0, Dia.=40′, DC=3... 7X50 B... Marco Goiato (Araçatuba, Brasil)
2010 Oct. 18.72 UT: m1=5.9, Dia.=24′... 4×30 B... David A. J. Seargent (Cowra, NSW, Australia) [Somewhat enhanced with Swan Band filter. Small central condensation in 15×80 binoculars] Intermittently glimpsed with naked eye using averted vision.
2010 Oct. 18.10 UT: m1=4.6, Dia.=50′, DC=3... Naked Eye... Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España) [En 7x50B: coma de 35′, DC=5. En 20-cm SCT (77x): ancha tail de polvo de 0.1º en PA 250º, embebida en la coma. Cielo muy claro de montaña]
2010 Oct. 16.92 UT: m1=4.8, Dia.=40′, DC=4... 7×50 B... Toni Scarmato (Calabria, Italia) [I saw the comet with naked eye but because close to a star of 5.6 mag I used my 7×50 to make an estimation.]
2010 Oct. 15.00 UT: m1=4.7, Dia.=60′, DC=2... Naked Eye... Juan José González (Aralla, alt. 1440 m., León, España) [En monocular 4×30: m1=4.8. En 7x50B: coma de 35′, DC=4. Cielo muy claro de montaña]
2010 Out. 14.125 UT: m1=5.0, Dia.=40′, DC=2, 8X25 B... Marco Goiato (Maceió, Brasil)
2010 Oct. 13.93 UT: m1=5.0, Dia.=50′, DC=3/... monocular 4×30... Juan José González (Pandorado, alt. 1720 m., León, España) [Coma involucrada con dos estrellas de mag 6.8 (TK). En 20-cm SCT (77x): tail de polvo de 0.2º en AP 250º]
2010 Oct. 11.11 UT: m1=5.0, Dia.=30′, DC=2... 10×50 B... Jorge Solano (Paseo Santaluz, San José Pinula, Guatemala) [Cielo mayormente despejado, no suficiente para captarlo a simple vista]
2010 Oct. 10.75 UT: m1=5.8, Dia.=23′, DC=3... 20×80 B... Artyom Novichonok (Kondopoga, Russia)
2010 Oct. 10.195UT: m1=6.0, Dia.=18´, DC=4, Tail= not visible... 15-cm SCT (37x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2010 Oct. 08.84 UT: m1=6.3, Dia.=12′, DC=4... 20×50 B... Alfons Diepvens (Balen Belgium)
2010 Oct. 08.78 UT: m1=6.0, Dia.=30′, DC=3... 25-cm reflector (60x)... Vyacheslav Ivanov (Peschanka, Russia)
2010 Oct. 07.89 UT: m1=6.3, Dia.=12′, DC=4... 20×50 B... Alfons Diepvens (Balen Belgium)
2010 Oct. 07.89 UT: m1=5.1, Dia.=50′, DC=2/... monocular 4×30... Juan José González (Les Bedules – Ponga, alt. 1080 m., Asturias, España) [En 7x50B: m1=6.0, Dia.=25′. Varias estrellas en la coma, siendo la más brillante KK Persei ( variable 6.6 – 7.9 ). Cielo muy claro de montaña]
2010 Oct. 07.87 UT: m1=5.8, Dia.=35′, DC=5... 7×50 B... Toni Scarmato (Calabria, Italia) [Diffuse the outer side of the coma but with a clear central condensation. In 20×90 it is possible to detect the motion of the comet in a few minutes and the coma is clearly asimmetric. No tail visible]
2010 Oct. 07.80 UT: m1=6.1, Dia.=27′, DC=3... 20×80 B... Artyom Novichonok (Konchezero, Russia)
2010 Oct. 07.74 UT: m1=8.6 CCD, Dia.=4.1′, DC=6... 25-cm L +CCD +Rc filter... Toni Scarmato (Calabria, Italia)
2010 Oct. 07.13 UT: m1=6.5, Dia.=16´, DC=3, Tail= not visible... 15-cm SCT (37x)... Salvador Aguirre (Hermosillo, Sonora, Mexico)
2010 Oct. 06.84 UT: m1=6.6, Dia.=26′, DC=2... 20×80 B... Artyom Novichonok (Konchezero, Russia)
2010 Out. 06.146 UT: m1=6.2:, Dia.=20′, DC=2... 20X100 B... Marco Goiato (Araçatuba, Brasil) [altitude do cometa= 11º, poluição luminosa]
2010 Oct. 05.92 UT: m1=7.1, Dia.=25′, DC=2... 7×50 B... Artyom Novichonok (Sopoha, Russia)
2010 Oct. 05.92 UT: m1=5.9, Dia.=35′, DC=3, no tail... 11×80 B... Carlos Labordena (Castellón, España) [Aspecto ovalado]
2010 Oct. 05.17 UT: m1=6.0, Dia.=20′, DC=1... 10×50 B... Jorge Solano (Paseo Santaluz, San José Pinula, Guatemala) [Cielo mayormente despejado pero con leve bruma]
2010 Oct. 04.83 UT: m1=5.3, Dia.=45′, DC=2... Naked Eye... Juan José González (Pandorado, alt. 1190 m., León, España) [En monocular 4×30: m1=5.2. Observación realizada en mejores condiciones, desde una localidad de montaña más elevada, proporcionando un mucho mayor diámetro de coma y una m1 más brillante respecto a mi estimación previa de Oct. 2.86]
2010 Oct. 04.77 UT: m1=7.2, Dia.=21′, DC=2... 7×50 B... Artyom Novichonok (Kondopoga, Russia)
2010 Oct. 02.93 UT: m1=7.0, Dia.=16′, DC=2, no tail... 11×80 B... Carlos Labordena (Castellón, España)
2010 Oct. 02.86 UT: m1=6.4, Dia.=25′, DC=2... 4×30 monocular... Juan José González (Collado de Hoz, alt. 637 m., Cantabria, España) [En 7x50B: m1=6.6. En 25x100B: Varias estrellas de mag. 9 en la coma, siendo la más brillante 9.1 (TK). Cielo muy claro de montaña]
2010 Oct. 02.84 UT: m1=9.1 CCD, Dia.=3.6′, DC 6... 25-cm L +CCD +Rc filter... Toni Scarmato (Calabria, Italia)
2010 Sep. 30.80 UT: m1=7.3, Dia.=25′, DC 4... 7×50 B... Toni Scarmato (Calabria, Italia) [Coma very diffuse. Seem visible a central condensation well condensed estimed 8.5 mag.]
2010 Sep. 29.83 UT: m1=7.5, Dia.=20′, DC 2... 7×50 B... Toni Scarmato (Calabria, Italia)
2010 Sep. 29.78 UT: m1=9.3 CCD, Dia.=3.4′, DC=6... 25-cm L +CCD +Rc filter... Toni Scarmato (Calabria, Italia)
2010 Sep. 28.83 UT: m1=7.2, Dia.=18′, DC=2... 10×50 B... Juan José González (Puerto de la Magdalena, alt. 1441 m., León, España) [En 25x100B: m1=7.6. Cielo muy claro de montaña]
2010 Sep. 28.51 UT: m1=9.3, Dia.=7′, DC=1/2... 25-cm L f:5 (39x)... Chris Wyatt (Walcha, NSW, Australia) [Comet was 4 degrees above horizon at the time of observation, dark sky, clear horizon, coma diffuse, no tail. Not corrected for atmospheric extinction. Comp Star= TYC 3653-742-1 Method= S. Cat= TJ]
2010 Sep. 27.82 UT: m1=7.3, Dia.=13′, DC=2... 10×50 B... Juan José González (Grandota, alt. 470 m., Asturias, España) [En 25x100B: m1=7.7. Localidad rural, cielo muy claro]
2010 Sep. 26.80 UT: m1=8.2, Dia.=8′, DC=3, no tail... 11×80 B... Carlos Labordena (Castellón, España)
2010 Sep. 20.16 UT: m1=8.1, Dia.=15′, DC=2/... 10×50 B... Juan José González (Aralla, alt. 1440 m., León, España) [En 25x100B: m1=8.4]
2010 Sep. 19.10 UT: m1=12.4 CCD, Dia.=1.0′, DC=7/... 41-cm L f/3.8 +CCD... Sergey Shurpakov (Belarus)
2010 Sep. 15.87 UT: m1=8.3, Dia.=12′, DC=3... 7×50 B... Toni Scarmato (Calabria, Italia)
2010 Sep. 15.00 UT: m1=8.5, Dia.=15′, DC=2... 10×50 B... Juan José González (Aralla, alt. 1440 m., León, España) [En 25x100B: m1=8.8]
2010 Sep. 14.95 UT: m1=10.0, Dia.=8′, DC=3... 15-cm L... Ilya Los’ (Saratov, Russia)
2010 Sep. 14.93 UT: m1=12.5 CCD, Dia.=0.92′, DC=7/, Tail= 1.2′ in PA: 193 deg ... 41-cm L f/3.8 +CCD... Sergey Shurpakov (Belarus)
2010 Sep. 14.92 UT: m1=10.1: CCD, Dia.=7.3′... 11-cm L +CCD... Artyom Novichonok (Kondopoga, Russia) & Evgeny Plyaschenko (Petropavlovsk, Kazakhstan )
2010 Sep. 14.81 UT: m1=9.7, Dia.=6′, DC=d3... 25.4-cm L... Vyacheslav Ivanov (Peschanka, Russia)
2010 Sep. 13.82 UT: m1=10.0, Dia.=5′, DC=d3... 20.0-cm L... Vyacheslav Ivanov (Peschanka, Russia)
2010 Sep. 13.78 UT: m1=11.0 CCD, Dia.=3.0′, DC 6... 25-cm L +CCD +Rc filter... Toni Scarmato (Calabria, Italia) [I saw the comet visually in my 20×90 binoculars, diffuse with a coma large about 8′, no central condensation visible, no tail visible, magnitude estimation no precise 9.0]
2010 Set. 13.125 UT: m1=9.7, Dia.=4′, DC=3... 22-cm L f:6.5 (160x)... Marco Goiato (Araçatuba, Brasil)
2010 Set. 12.167 UT: m1=9.7, Dia.=4′, DC=3, 22-cm L f:6.5 (160x)... Marco Goiato (Araçatuba, Brasil)...
2010 Sep. 11.95 UT: m1=9.8, Dia.=4′, DC=3... 15-cm L... Ilya Los’ (Saratov, Russia)
2010 Sep. 10.97 UT: m1= 9.1, Dia.=4′, DC=3, no tail... 11×80 B... Carlos Labordena (Castellón, España)
2010 Sep. 10.82 UT: m1=10.0, Dia.=4′, DC=d3... 25.4-cm L... Vyacheslav Ivanov (Saratov, Russia)
2010 Sep. 10.34 UT: m1=9.5: CCD, Dia.=6.9′... 9-cm L +CCD... Artyom Novichonok (Kondopoga, Russia) & Oleg Sankin (Moscow, Russia)
2010 Set. 10.125 UT: m1=10.3:, Dia.=2′, DC=4, 22-cm L f:6.5 (160x)... Marco Goiato (Araçatuba, Brasil)
2010 Sep. 10.05 UT: m1=9.3, Dia.=8′, DC=3... 25×100 B... Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España) [En 20-cm SCT (77x): m1=9.5]
2010 Sep. 09.92 UT: m1=9.9, Dia.=6.2′, DC=3... 13-cm L... Artyom Novichonok ( konchezero, Russia )
2010 Sep. 09.10 UT: m1=10.0, Dia.=0′.5... 18-cm L (57x)... Alexandre Amorim (Florianopolis, Brazil)
2010 Sep. 08.94 UT: m1=10.0, Dia.=5.9′, DC=3... 13-cm reflector... Artyom Novichonok ( Konchezero, Russia )
2010 Sep. 07.55 UT: m1=10.8, Dia.= 11’, DC=2/3... 25-cm L f:5 (39x)... Chris Wyatt (Walcha, NSW, Australia) [No tail. Comp Star= TYC 3224-1968-1. Method= S. Cat= TJ]
2010 Sep. 06.76 UT: m1=11.1 CCD, Dia.=3.0′, DC 6... 25-cm L +CCD +Rc filter... Toni Scarmato (Calabria, Italia)
2010 Sep. 06.50 UT: m1=10.2, Dia.= 7.7’, DC=2/3... 25-cm L f:5 (39x)... Chris Wyatt (Walcha, NSW, Australia) [Coma large and diffuse, slightly concentrated condensation using averted vision, 8 degrees above local horizon. Comp Star= TYC 3219-1183-1 Method= S. Cat= TJ]
2010 Sep. 04.86 UT: m1=9.8, Dia.=6′, DC=3... 25×100 B... Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España) [En 20-cm SCT (77x): m1=10.1]
2010 Sep. 04.77 UT: m1=11.2 CCD, Dia.=3.0′, DC 6... 25-cm L +CCD +Rc filter... Toni Scarmato (Calabria, Italia)
2010 Sep. 03.85 UT: m1= 10.4, Dia.=4′, DC=4, no tail... 23.5-cm SCT(67x)... Carlos Labordena (Castellón, España)
2010 Sep. 03.04 UT: m1=10.5, Dia.=5.9′, DC=5... 22-cm L + CCD... Artyom Novichonok (Kondopoga, Russia) & Victor Voropaev (Moscow, Russia)
2010 Sep. 02.96 UT: m1=10.4, Dia.=2.8′, DC=5... 22-cm L + CCD... Artyom Novichonok (Kondopoga, Russia) & Victor Voropaev (Moscow, Russia)
2010 Sep. 01.79 UT: m1=10.8 CCD, Dia.=2.5′, DC 7... 25-cm L +CCD +Rc filter... Toni Scarmato (Calabria, Italia)
2010 Aug. 31.95 UT: m1=11.5, Dia.=2.3′... 22-cm L + CCD... Artyom Novichonok (Kondopoga, Russia) & Victor Voropaev (Moscow, Russia)
2010 Aug. 30.92 UT: m1=11.3, Dia.=2.9′... 11.4-cm L + CCD... Artyom Novichonok (Kondopoga, Russia) & Evgeny Plyaschenko (Petropavlovsk, Kazakhstan)
2010 Aug. 29.82 UT: m1=11.6 CCD, Dia.=2.1′, DC=7... 25-cm L +CCD +Rc filter... Toni Scarmato (Calabria, Italia)
2010 Aug. 27.77 UT: m1=11.8 CCD, Dia.=2.1′, DC 7... 25-cm L +CCD +Rc filter... Toni Scarmato (Calabria, Italia)
2010 Aug. 26.79 UT: m1=12.8 CCD, Dia.=1.5′, DC=6... 25-cm L +CCD +Rc filter... Toni Scarmato (Calabria, Italia) [Haze and moonlight]
2010 Aug. 25.80 UT: m1=12.3 CCD, Dia.=1.5′, DC=6... 25-cm L +CCD +Rc filter... Toni Scarmato (Calabria, Italia)
2010 Aug. 22.83 UT: m1=12.8 CCD, Dia.=0.8′, DC=6... 25-cm L +CCD +Rc filter... Toni Scarmato (Calabria, Italia)
2010 Aug. 20.94 UT: m1=13.2, Dia.=0.8′, DC=5... 25.4-cm L (203x)... Artyom Novichonok (Sheltozero, Russia)
2010 Aug. 20.18 UT: m1=12.3, Dia.=1.3′, DC=5/... 20-cm SCT (133x)... Juan José González (Pandorado, alt. 1190 m., León, España)
2010 Aug. 18.88 UT: m1=13.3, Dia.=0.8′, DC=3... 25.4-cm L (203x)... Alexander Smirnov (Sheltozero, Russia)
2010 Aug. 16.88 UT: m1=12.8, Dia.=1.2′, DC=4... 61.5-cm L (203x)... Artyom Novichonok (Sheltozero, Russia)
2010 Aug. 15.90 UT: m1=13.0, Dia.=0.7′, DC=5... 25.4-cm L (203x)... Artyom Novichonok (Sheltozero, Russia)
2010 Aug. 13.85 UT: m1=14.0 CCD, Dia.=0.8′, DC=6... 25-cm L +CCD +Rc filter... Toni Scarmato (Calabria, Italia)
2010 Aug. 11.90 UT: m1=14.1 CCD, Dia.=0.8′, DC=5... 25-cm L +CCD +Rc filter... Toni Scarmato (Calabria, Italia)
2010 Aug. 07.91 UT: m1=14.1 CCD, Dia=0.8′, DC=5... 25-cmL +CCD +Rc filter... Toni Scarmato (Calabria, Italia)
2010 Aug. 07.57 UT: m1=13.4, Dia.=0.6′, DC=6... 40.0-cm L f/4.5 (257x)... Seiichi Yoshida (Gunma, Japan) [See it again since 1998. This comet will be very bright this autumn. I was surprised that it is already bright and visible, because few visual observations have been recently. Well condensed, not tiny]
2010 Aug. 06.96 UT: m1=13.2, Dia.=0.6′, DC=6... 20-cm SCT (133x)... Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España) [Cielo muy claro de montaña. Estrellas de campo comprobadas en el DSS. Movimiento seguido durante 60 min. Estrellas de comparación de la secuencia Henden de Y Peg]
2010 Aug. 04.53 UT... m1=13.4, Dia.=0.7’, DC= 1... 25-cm L f:5 (83x)... Chris Wyatt (Walcha, NSW, Australia) [Coma small and diffuse, visible only in periods of good seeing using averted vision. Comp Star= GSC-2223-1928 Method= S. Cat= HS]
2010 Aug. 01.90 UT: m1=14.3 CCD, Dia.=0.6′, DC=5... 25-cm L +CCD +Rc filter... Toni Scarmato (Calabria, Italia)
2010 July 29.85 UT: m1=14.8 CCD, Dia.=0.6′, DC=3... 25-cm L +CCD +Rc filter... Toni Scarmato (Calabria, Italia)
2010 July 22.91 UT: m1=15.0 CCD, Dia.=0.4′, DC=4... 25-cm L +CCD +Rc filter... Toni Scarmato (Calabria, Italia)
2010 July 20.96 UT: m1=15.5 CCD, Dia.=0.4′, DC=4... 25-cm L +CCD +Rc filter... Toni Scarmato (Calabria, Italia)
2010 July 18.06 UT: m1=[14.5... 20-cm SCT (133x)... Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España) [Cometa no observado en la posición de efemérides. Cielo muy claro de montaña]
2010 July 13.01 UT: m1=16.4 CCD, Dia.=0.2′, DC=4... 25-cm L +CCD +Rc filter... Toni Scarmato (Calabria, Italia)
1998 Mar. 25.12 UT: m1=12.2 CCD, Dia.=1.5', DC=1... 45-cm CASS/ST6... Tom Johnston (Sommers-Bausch Observatory, Boulder, Colorado)
1998 Mar. 22.12 UT: m1=11.5 CCD, Dia.=2', DC=2... 45-cm CASS/ST6... Tom Johnston (Sommers-Bausch Observatory, Boulder, Colorado) [Fading]
1998 Mar. 20.93 UT: m1=11.9, Dia.=2', DC=1/... 32-cm L (75x)... J. Carvajal (Avila, Spain)
1998 Mar. 20.93 UT: m1=11.7, Dia.=2', DC=1... 32-cm L (75x)... J. M.San Juan (Avila, Spain)
1998 Mar. 01.85 UT: m1=11.9, Dia.=1.9', DC=2... 38-cm L (55x)... Johan Warell (Sandvreten, Sweden) [Diffuse, round. Low altitude.]
1998 Mar. 01.78 UT: m1=10.0, Dia.=4.2', DC=1/... 7-cm R f/6.8 (24x)... Bjørn H. Granslo (Tryvann, Oslo, Norway) [Comet was very faint but seen at the correct position. The Moon did not interefere to this observation. Very transparent atmosphere (NLM=~5.7). Altitude 30 deg. Magnitudes of nearby comparison stars were taken from the Tycho catalogue.]
1998 Mar. 01.26 UT: m1=10.8, Dia.=3', DC=2... 25.6-cm L (42x)... Nicolas Biver (Dillingham, Oahu, Hawaii)
1998 Mar. 01.12 UT: m1=10.0 CCD, Dia.=3', DC=3... 45-cm CASS/ST6... Tom Johnston (Sommers-Bausch Observatory, Boulder, Colorado)