65P/Gunn

65P/Gunn
Reported observations:
2017 June 30.61 UT: m1=14.1, Dia.=1’, DC=2, ... 25-cm L f:5 (83x) ... Chris Wyatt (Walcha, NSW, Australia) [Coma diffuse. Comparison stars checked using APASS data in Guide 9.0; Method= S; Cat= AQ]
2017 June 26.51 UT: m1=14.0; Dia.=0.8’, DC=2, ... 25-cm L f:5 (83x) ... Chris Wyatt (Walcha, NSW, Australia) [Coma diffuse. Comparison stars checked using APASS data in Guide 9.0; Method= S; Cat= AQ]
2017 June 22.47 UT: m1=13.9, Dia.=0.8’, DC=2, ... 25-cm L f:5 (83x) ... Chris Wyatt (Walcha, NSW, Australia) [Very diffuse. Comparison stars checked using APASS data in Guide 9.0; Method= S; Cat= AQ]
2017 May  26.50 UT: m1=13.7, Dia.=0.9’, DC=1, ... 25-cm L f:5 (83x) ... Chris Wyatt (Walcha, NSW, Australia) [Coma very diffuse. Comparison stars checked using APASS data in Guide 9.0; Method= S; Cat= AQ]
2016 May  12.88 UT: m1=16.4 CCD, Dia.=0.46′, DC=9 ... 15-cm L + CCD... Sergey Shurpakov (Baran’, Belarus)
2016 Apr. 29.83 UT: m1=16.6 CCD, Dia.=0.21′, DC=8/ ... 0.25-m Newton+CCD... Sergey Shurpakov (Baran’, Belarus)
2016 Apr. 23.94 UT: m1=16.5 CCD, Dia.=0.37′, DC=8 ... 15-cm L... Sergey Shurpakov (Baran’, Belarus)
2016 Apr. 15.99 UT: m1=16.4 CCD, Dia.=0.37′, DC=8/ ... 15-cm L... Sergey Shurpakov (Baran’, Belarus)
2015 Mar. 24.00 UT: m1=17.9 CCD + R filter, Dia.=13″, DC 2 ... 70-cm f/4 L + CCD... Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Mar. 16.98 UT: m1=17.3 CCD + R filter, Dia.=8″, DC 8 ... 70-cm f/4 L + CCD... Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Mar. 10.93 UT: m1=17.6 CCD + R filter, Dia.=8″, DC 8, FanTail= 26″ in PA: 232-349 deg ... 70-cm f/4 L + CCD... Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2015 Feb. 17.04 UT: m1=18.0 CCD + R filter, Dia.=7″, DC 8 ... 70-cm f/4 L + CCD... Alexander Baransky (Kyiv comet station MPC 585, Ukraine)
2010 Nov. 08.43 UT: m1=14.7, Dia.=0.5’, DC=2 ... 25-cm L f:5 (83x)... Chris Wyatt (Walcha, NSW, Australia) [No Tail, dim with small central condensation visible using averted vision in good seeing. Comp Star= GSC-6932-0121 Method= S. Cat= HS]
2010 Oct. 27.44 UT: m1=13.9, Dia.=1′, DC=0/ ... 25-cm L f:5 (83x)... Chris Wyatt (Walcha, NSW, Australia) [Coma very diffuse, visible using averted vision, no Tail. Comp Star= GSC-6934-0698. Method=S. Cat= HS]
2010 Oct. 26.979 UT: m1=13.6:, Dia.=0.2′, DC=7 ... 22-cm L f:6.5 (230x)... Marco Goiato (Araçatuba, Brasil)
2010 Sep. 10.97 UT: m1=13.0: ... 18-cm L (160x)... Alexandre Amorim (Florianopolis, Brazil) [ASAS]
2010 Sep. 09.94 UT: m1=13.0:, DC=8/ ... 18-cm L (160x)... Alexandre Amorim (Florianopolis, Brazil) [ASAS]
2010 Sep. 06.39 UT: m1=13.8, Dia.=0.5’, DC=2/ ... 25-cm L f:5 (83x)... Chris Wyatt (Walcha, NSW, Australia) [Coma very small, averted vision, close to bright star. Comp Star= GSC-7460-1503 Method= S. Cat= HS]
2010 Sep. 02.37 UT: m1=13.9, Dia.=1.5’, DC=2 ... 25-cm L f:5 (83x)... Chris Wyatt (Walcha, NSW, Australia) [No Tail, coma small and diffuse, close to bright stars. Comp Star= GSC-7460-1369 Method= S. Cat= HS]
2010 Aug. 07.93 UT: m1=12.3, Dia.=1′, DC=3, no tail... 23.5-cm SCT (138x)... Carlos Labordena (Castellón, España)
2010 Aug. 07.125 UT: m1=11.7, Dia.=1′, DC=4 ... 22-cm L f:6.5 (160x)... Marco Goiato (Araçatuba, Brasil)
2010 Aug. 06.98 UT: m1=11.7, Dia.=1.2′, DC=3/ ... 20-cm SCT (100x)... Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España) [Altura: 14º]
2010 Aug. 06.97 UT: m1=11.5: ... 18-cm L (57x)... Alexandre Amorim (Florianopolis, Brazil)
2010 Aug. 04.38 UT... m1= 12.2, Dia.=3’, DC=1/ ... 25-cm L f:5 (39x)... Chris Wyatt (Walcha, NSW, Australia) [No Tail, coma diffuse, bright star nearby. Comp Star= GSC-7462-0351 Method= S. Cat= HS]
2010 July 18.208 UT: m1=11.5, Dia.=1′, DC=4 ... 22-cm L f:6.5 (160x)... Marco Goiato (Araçatuba, Brasil)
2010 July 18.13 UT: m1=11.5, Dia.=1.5′, DC=4 ... 20-cm SCT (133x)... Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España) [Altura: 15º]
2010 July 17.59 UT: m1=11.8, Dia.=3′ ... 25.4-cm L (71x)... David A. J. Seargent (Cowra, NSW, Australia)
2010 July 15.00 UT: m1=11.5: ... 18-cm L (160x)... Alexandre Amorim (Florianopolis, Brazil)
2010 July 14.14 UT: m1=11.5: ... 18-cm L (160x)... Alexandre Amorim (Florianopolis, Brazil)
2010 July 10.48 UT: m1=12.7, Dia.=2.5′ ... 15-cm L + CCD... Artyom Novichonok (remotely Moorook, S. Australia)
2010 July 10.07 UT: m1=11.5, Dia.=1.5′, DC=4 ... 20-cm SCT (100x)... Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España) [Altura: 17º]
2010 July 09.271 UT: m1=11.9:, Dia.=1′, DC=4 ... 22-cm L f:6.5 (160x)... Marco Goiato (Araçatuba, Brasil) [próximo a estrela com m1:12.1]
2010 July 06.15 UT: m1=11.5, Dia.=1′, DC=6 ... 18-cm L (160x)... Alexandre Amorim (Florianopolis, Brazil)
2010 July 05.30 UT: m1=11.5:, Dia.=0.5′, DC=6 ... 18-cm L (160x)... Alexandre Amorim (Florianopolis, Brazil)
2010 June 20.42 UT: m1=13.2 ccd, Dia.=1.6′, Tail= 7′... 35.5 -cm L +CCD... Artyom Novichonok & Dimitry Chestnov (remotely Mayhill, USA)
2010 June 18.07 UT: m1=11.9, Dia.=1.2′, DC=4 ... 20-cm SCT (133x)... Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España) [Altura: 13º]
2010 June 12.312 UT: m1=12.6, Dia.=0.5′, DC=4 ... 22-cm L f:6.5 (230x)... Marco Goiato (Araçatuba, Brasil)
2010 June 10.39 UT: m1=14.2 ccd, Dia.=0.56′, DC=7/, Tail= 5.6′ in PA: 256 deg ... 36-cm L f/3.8 +CCD... Sergey Shurpakov (Baran’, Belarus)
2010 May  22.12 UT: m1=12.3, Dia.=1.2′, DC=3/ ... 20-cm SCT (133x)... Juan José González (Alto del Castro – Aralla, alt. 1720 m., León, España) [Altura: 14º]
2010 May  11.79 UT: m1=13.3, Dia.=0.6’, DC=3 ... 25-cm L f:5 (83x)... Chris Wyatt (Walcha, NSW, Australia) [Close to bright star, no Tail. Comp Star= GSC-6926-1107 Method= S. Cat= HS]
2010 May  10.75 UT: m1=13.5, Dia.=0.6’, DC=3/ ... 25-cm L f:5 (83x)... Chris Wyatt (Walcha, NSW, Australia) [No Tail, glimpses of tight central condensation in small coma using averted vision. Comp Star= GSC-6926-1386. Method= S. Cat= HS]
2010 Apr. 22.75 UT: m1=14.4, Dia.=0.5’, DC=1/ ... 25-cm L f:5 (83x)... Chris Wyatt (Walcha, NSW, Australia) [No Tail, coma small and diffuse, bright star nearby, averted vision. Comp Star= GSC-6912-0469 Method= S. Cat= HS]
2010 Mar. 25.72 UT: m1=13.4, Dia.=0.7’, DC= 0/ ... 25-cm L f:5 (139x)... Chris Wyatt (Walcha, NSW, Australia) [Coma very faint and diffuse using averted vision, no Tail. Comp Star= GSC-6894-2556. Method= S. Cat= HS]
2010 Mar. 23.72 UT: m1=13.6, Dia.=0.6’, DC= 0/ ... 25-cm L f:5 (139x)... Chris Wyatt (Walcha, NSW, Australia) [No Tail, only visible using averted vision. Comp Star= GSC-6894-2630. Method= S. Cat= HS]
2010 Mar. 18.74 UT: m1=13.8... Dia.=0.75’, DC=1/ ... 25-cm L f:5 (139x)... Chris Wyatt (Walcha, NSW, Australia) [No Tail, very diffuse, visible using averted vision. Comp Star= GSC-6893-0637. Method= S. Cat= HS]
2003 July 24.39 UT: m1=~12.0, Dia.=1.0', DC=~4/9 ... 41-cm L(166x) ... John Drummond, (Gisborne, New Zealand) [A difficult observation due to 65P sitting in a rich field of mag 13-14 stars - it looks like a comet with many stellar nuclei - or a small globular cluster - due to this it is hard to get a DC and mag estimate].
2003 July 22.96 UT: m1=11.8, Dia.=0'.5, DC=4 ... 20-cm SCT (206x)... Juan Jose Gonzalez (Alto del Castro - Aralla, alt. 1720 m, Leon, North Spain)
2003 July 22.93 UT: m1=11.8, Dia.=1', DC=3 ... 23.5-cm SCT (235x) ... Rafael Benavides (Posadas, Cordoba, España)
2003 July 20.44 UT: m1=12.6, Dia.=1.1', DC=3  ... 37-cmL (415x) ... Mike Linnolt (Honolulu, HI) [In-Out method. AAVSO RV Sgr d1951 chart. Conditions not too good, some variable high clouds, light pollution and moon, but comet appears to be getting more diffuse and fading. NELM~5.0] {415x?? ... csm}
2003 July 08.03 UT: m1=11.8, Dia.=0'.5, DC=5 ... 20-cm SCT (206x) ... Juan Jose Gonzalez (Alto del Castro - Aralla, alt. 1720 m, Leon, North Spain)
2003 July 05.98 UT: m1=11.5, Dia.=1', DC=0/ ... 27-cmL (55x) ... Willian Souza (Sousas , Brasil)
2003 July 05.47 UT: m1=11.9, Dia.=1.0', DC=5 ... 37-cmL (256x) ... Mike Linnolt (Dillingham, HI) [In-Out method. Tycho2+Bessell corr. NELM~6.0]
2003 July 04.25 UT: m1=11.9, Dia.=0.8', DC=3 ... 20-cmL (80x) ... Stuart Rae (Hamilton, New Zealand)
2003 June 22.42 UT: m1=12.1, Dia.=0.8', DC=5 ... 37-cmL (415x) ... Mike Linnolt (Honolulu, HI) [In-Out method. Tycho2+Bessell corr. Moderate light pollution NELM~5.2]
2003 June 22.12 UT: m1=12.5: ... 14.3-cm L f/6 (225x) ... Alexandre Amorim(Florianopolis,Brazil)[GSC stars used, hard to see]
2003 June 22.02 UT: m1=12.0, Dia.=1', DC=2 ... 45-cm L (100x) ... J. Carvajal (Avila, Spain)
2003 June 22.01 UT: m1=12.5, Dia.=1', DC=3 ... 45-cm L (100x) ... J. M. San Juan (Avila, Spain)
2003 June 20.37 UT: m1=12.2, Dia.=0'.8,DC=6 ... 41-cm L(166x) ... John Drummond (Gisborne, New Zealand) [65P displays a fairly bright coma with a fairly condensed nucleus]
2003 June 20.01 UT: m1=12.5, Dia.=0'.3, DC=5 ... 20-cm SCT (206x) ... Juan Jose Gonzalez (Alto del Castro - Aralla, alt. 1720 m, Leon, North Spain)
2003 June 08.55 UT: m1=12.1, Dia.=1.0', DC=5 ... 37-cmL (256x) ... Mike Linnolt (Dillingham, HI) [In-Out method. Tycho2+Bessell corr. Dark sky site NELM~6.2]
2003 June 08.38 UT: m1=12.0 CCD, Dia.=0.28', DC=5/9 ... 0.41-m SCT/CCD ... P. Clay Sherrod (ASO - Petit Jean H41) [Broad and very vague tail seen in PA 280 deg. coma is large and very concentrated. comet seems to be growing brighter. *m2= 14.5ccd]
2003 June 07.55 UT: m1=12.7, Dia.=0'.7, DC=5 ... 41-cm L ... John Drummond, (Gisborne, New Zealand) [65P has a fairly bright coma which gets brighter as it gets closer to the fairly condensed nucleus]
2003 June 04.00 UT: m1=12.3, Dia.=1', DC=4 ... 20.3-cm L (63x) ... Piotr Guzik (Krosno, Poland)[Again easy object despite an altitude of only 10deg]
2003 June 03.45 UT: m1=12.7, Dia.=0'.5, DC=6 ... 41-cm L ... John Drummond, (Gisborne, New Zealand) [65P has a fairly bright coma with a condensed nucleus]
2003 May. 31.02 UT: m1=12.5:, Dia.=1', DC=4 ... 20.3-cm L (63x) ... Piotr Guzik (Krosno, Poland)[Comet was relatively easily seen despite its altitude of only 11deg. NELM~5.5 near the comet.]
2003 May  28.74 UT: m1=13.0, Dia.=0'.5, DC=4 ... 41-cm L ... John Drummond (Gisborne, New Zealand) [65P appears as a small smudge with some central condensation. Observation done just as twilight was commensing. Comet's alt is 46* in the W. Stellar LM =14.9, diffuse LM = 13.7 (scope)]
2003 May  27.70 UT: m1=12.9, Dia.=0'.5, DC=4 ... 41-cm f4.5 L ... John Drummond, (Gisborne, New Zealand) [65P appears as a small smudge with some central condensation. The coma has a nice even 'face']
2003 May  25.58 UT: m1=12.3, Dia.=1', DC=5 ... 28-cm T 133x ... Michael Mattiazzo (Wallaroo, South Australia) [Tycho2 VT comparisons]
2003 May  23.34 UT: m1=14.5 CCD, Dia.=17", DC=6/9 ... 0.41-m SCT/ccd ... ..P. Clay Sherrod, (ASO - Petit Jean Mountain, H41) [Short, wide tail in PA 277 deg, 0.6' length, comet is concentrated and a fine object, extremely low on south horizon]
2002 June 03.177 UT: m1=15.71 CCD, Dia.=6", DC=3/9 ... 0.3-m SCT/CCD ... P.Clay Sherrod, (ASO, Conway, Arkansas) [short possible extension in PA 105d, 8-10" length ... Moderate Light pollution, trans = 3.5/6.5]
2002 May  12.187 UT: m1=14.81 CCD, Dia.=2", DC=9/9 ... 0.3-m SCT/CCD ... P.Clay Sherrod, (ASO, Conway, Arkansas) [perfectly stellar ... very clear skies, deep clear]
2002 May  05.157 UT: m1=14.23 CCD, Dia.=6", DC=2/10 ... 0.3-m SCT/CCD ... P.Clay Sherrod, (ASO, Conway, Arkansas) [short, distinct fan-shaped extension in PA 165 deg, 8-10" length. Moderate Light pollution, incoming cirrus clouds]
2002 Apr. 29.271 UT: m1=14.56 CCD, Dia.=2", DC=1/10 ... 0.3-m SCT/CCD ... P.Clay Sherrod, (ASO, Conway, Arkansas) [no structure/tail recorded, strong moonlight]
2002 Apr. 15.296 UT: m1=14.66 CCD, Dia.=5", DC=1/10 ... 0.3-m SCT/CCD ... P. Clay Sherrod (ASO, Conway, Arkansas) [No Tail, comet is very diffuse and difficult. Light pollution and low haze]
2002 Apr. 12.212 UT: m1=15.10 CCD, Dia.=4", DC=2/10, Tail=~9" broad fan in PA: 281 ... 0.3-m SCT/CCD ... P. Clay Sherrod (ASO, Conway, Arkansas) [Light pollution against high cloud].
2002 Apr. 11.292 UT: m1=15.01 CCD, Dia.=8", DC=2/10 ... 0.3-m SCT/CCD ... P. Clay Sherrod (ASO, Conway, Arkansas) [very dark and transparent sky. No Tail, nearly uniformly diffuse disk]
2002 Apr. 09.85 UT: m1=11.7, Dia.=1.0', DC=1 ... 25--cm L f:5 (133x) ... J. P. Navarro Pina (El Palmar, Murcia, Spain)
2002 Apr. 09.29 UT: m1=11.69 CCD, Dia.=<5", DC=4/10, no tail ... 0.3-m SCT/CCD ... P. Clay Sherrod (ASO, Conway, Arkansas) [Light pollution & heavy fog. large stellar, uniformly diffuse, *comet is most definitely significantly brighter than on 0406!]
2002 Apr. 05.29 UT: m1=14.51 CCD, Dia.=12", DC=2-3, Tail= n/a ... 0.3-m SCT/CCD ... P. Clay Sherrod (ASO, Conway, Arkansas) [Moderate Light pollution and fog]