64P/Swift-Gehrels

64P/Swift-Gehrels
Reported observations:
2018 Nov. 14.01 UT: m1=9.6, Dia.=3.5', DC=5, ... 60-cm L(81x) ... Sandor Szabo (Sopron, Hungary)
2018 Nov. 13.14 UT: m1=9.2, Dia.=7', DC=3/, ... 20-cm SCT(77x) ... Juan Jose Gonzalez (Collada del Fresno - Sierra del Aramo, Asturias, Spain. Alt. 1280 m, 43º 10' N, 5º 54' W) [Sidgwick method. Tycho-2 comparison stars. SQM: 21.1]
2018 Nov. 12.76 UT: m1=9.3, Dia.=6', DC=4, ... 13-cm L(65x) ... Alexsandr Morozov (Novozybkov, Russia) [method S, Lm=6.56]
2018 Nov. 11.44 UT: m1=9.5, Dia.=5’, DC=4, ... 25-cm L f:5(39x) ... Chris Wyatt (Walcha, NSW, Australia) [Coma diffuse, star in coma. Moonlight. Comparison stars checked using Tycho-2 data in Guide 9.0, Method= M, Cat= TK]
2018 Nov. 11.04 UT: m1=9.7, Dia.=5', DC=3, ... 22-cm L(60x) ... Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2018 Nov. 10.96 UT: m1=9.0, Dia.=3.2', DC=3, ... 25-cm L(73x) ... Valentín Díaz (La Romana, Alicante, España)
2018 Nov. 09.15 UT: m1=9.2, Dia.=7', DC=3, ... 20-cm SCT(77x) ... Juan Jose Gonzalez (Collada del Fresno - Sierra del Aramo, Asturias, Spain. Alt. 1221 m, 43º 10' N, 5º 54' W) [Several stars inside the coma, the brightest being mag. 8.6 (TK). Sidgwick method. Tycho-2 comparison stars. SQM: 21.0]
2018 Nov. 08.48 UT: m1=9.2, Dia.=8’, DC=4, ... 25-cm L f:5(39x) ... Chris Wyatt (Walcha, NSW, Australia) [Enhances in Swan Band filter. Faint tenuous outer coma, opaque inner coma with small moderately condensed centre. Faint stars in coma. Outer coma appears slightly elongated to the West approximately. Comparison stars checked using Tycho-2 data in Guide 9.0, Method= M, Cat= TK]
2018 Nov. 06.04 UT: m1=9.7, Dia.=5', DC=3, ... 22-cm L(60x) ... Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2018 Nov. 05.94 UT: m1=7.8, Dia.=10', DC=3, ... 8-cm B(11x) ... Carlos Labordena (Castellón, España)
2018 Nov. 05.84 UT: m1=8.8, Dia.=6', DC=2, ... 8-cm B(11x) ... Carlos Labordena (Castellón, España)
2018 Nov. 05.83 UT: m1=8.9, Dia.=5', DC=3, ... 15-cm T(30x) ... Carlos Labordena (Castellón, España)
2018 Nov. 04.77 UT: m1=9.7, Dia.=3', DC=5, .. 25.4-cm L (48x) ... Alexsandr Morozov (Novozybkov, Russia) [method M, Lm=6.70]
2018 Nov. 03.83 UT: m1=8.7, Dia.=7', DC=3/, ... 25x100 B ... Juan Jose Gonzalez (Pandorado, Leon, Spain. Alt. 1190 m, 42º 47' N, 6º 00' W) [In 20 cm SCT (77x) : m1=9.3, Dia.=6', DC=3. Sidgwick method. Tycho-2 comparison stars. SQM: 21.2]
2018 Nov. 03.78 UT: m1=9.9, Dia.=3.5', DC=3/, ... 25.4-cm L f/5(64x) ... Maik Meyer (Limburg, Germany)
2018 Nov. 03.64 UT: m1=9.9, Dia.=5', DC=5, ... 40.0-cm L f/4.5(36x) ... Seiichi Yoshida (Gunma, Japan)
2018 Nov. 03.43 UT: m1=9.9, Dia.=6.2’, DC=3/, ... 25-cm L f:5(39x) ... Chris Wyatt (Walcha, NSW, Australia) [Low altitude= 19.0°. Some interference from bright star in coma. Moderately condensed centre, opaque fading to semi-transparent outer coma. Comparison stars checked using Tycho-2 data in Guide 9.0, Method= M, Cat= TK]
2018 Oct. 30.44 UT: m1=9.9, Dia.=8.0’, DC=4, ... 25-cm L f:5(39x) ... Chris Wyatt (Walcha, NSW, Australia) [Semi-transparent outer coma, opaque inner coma. Low altitude = 19.3°. Comparison stars checked using Tycho-2 data in Guide 9.0, Method= M, Cat= TK]
2018 Oct. 30.06 UT: m1=10.0, Dia.=4', DC=2, ... 22-cm L(60x) ... Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2018 Oct. 29.87 UT: m1=10.3, Dia.=3', DC=3, ... 20-cm SCT(50x) .... Carlos Labordena (Castellón, España)
2018 Oct. 29.45 UT: m1=9.6, Dia.=5', ... 25x100 B ... David A. J. Seargent (Cowra, NSW, Australia)  
2018 Oct. 29.44 UT: m1=10.0, Dia.=6.2’, DC=4, ... 25-cm L f:5(39x) ... Chris Wyatt (Walcha, NSW, Australia) [Coma enhances in Swan Band filter. Low altitude= 19.2°. Comparison stars checked using Tycho-2 data in Guide 9.0, Method= M, Cat= TK]
2018 Oct. 27.42 UT: m1=10.0, Dia.=5’, DC=3/, ... 25-cm L f:5(39x) ... Chris Wyatt (Walcha, NSW, Australia) [Coma centre opaque, moderately condensed, outer coma semi-transparent. Coma centre dims in Swan Band filter. Low altitude = 17.1°. Comparison stars checked using Tycho-2 data in Guide 9.0, Method= M, Cat= TK]
2018 Oct. 22.09 UT: m1= 10.3, Dia.=3', DC=2, ... 22-cm L (160x) ... Marco Antonio Coelho Goiato (Araçatuba, Brazil);[ moonlight ]
2018 Oct. 21.05 UT: m1=10.3, Dia.=3', DC=4, ... 25.4-cm L(120x) ... Alexsandr Morozov (Novozybkov, Russia) [method S, Lm=6.66]
2018 Oct. 20.15 UT: m1=9.5, Dia.=6', DC=3, ... 20-cm SCT(77x) ... Juan Jose Gonzalez (Alto del Castro, Leon, Spain. Alt. 1720 m, 42º 54' N, 5º 48' W) [Sidgwick method. Tycho-2 comparison stars. SQM: 21.3]
2018 Oct. 16.84 UT: m1=10.8, Dia.=2.4', DC=4/, ... 25.4-cm L(48x) ... Alexsandr Morozov (Novozybkov, Russia) [method S, Lm=6.69]
2018 Oct. 16.11 UT: m1=8.9, Dia.=7', DC=3, ... 20-cm SCT(77x) ... Juan Jose Gonzalez (Alto del Castro, Leon, Spain. Alt. 1720 m, 42º 54' N, 5º 48' W) [Sidgwick method. Tycho-2 comparison stars. SQM: 21.3]
2018 Oct. 15.79 UT: m1=11.0, Dia.=2.6', DC=4/, ... 25.4-cm L(120x) ... Alexsandr Morozov (Novozybkov, Russia) [method S, Lm=6.23]
2018 Oct. 15.76 UT: m1=10.4, Dia.=2.8', DC=3, ... 25.4-cm L f/5(64x) ... Maik Mayer (Limburg, Germany)
2018 Oct. 14.76 UT m1=10.5, Dia.=2.3', DC=2/, ... 25.4-cm L f/5(64x) ... Maik Mayer (Limburg, Germany)
2018 Oct. 13.76 UT: m1=10.6, Dia.=2.3', DC=3, ... 25.4-cm L f/5(64x) ... Maik Mayer (Limburg, Germany)
2018 Oct. 13.73 UT: m1=10.4, Dia.=3.2', DC=3, ...25-cm L F:5(70.5x, 150x) ...Danil Sidorko (Korenovsk, Russia) 
2018 Oct. 11.74 UT: m1=10.8, Dia.=1.8', DC=4, ... 25.4-cm L(48x) ... Alexsandr Morozov (Novozybkov, Russia) [method S, Lm=6.63]
2018 Oct. 11.73 UT: m1=10.8, Dia.=2.0', DC=3/, ...25-cm L F:5(70.5x, 150x) ...Danil Sidorko (Korenovsk, Russia) 
2018 Oct. 10.77 UT: m1=10.5, Dia.=2.3', DC=3, ... 25.4-cm L f/5 (64x) ... Maik Meyer (Limburg, Germany)
2018 Oct. 08.44 UT: m1=11.2, Dia.=4.5’, DC=4, ... 25-cm L f:5(39x) ... Chris Wyatt (Walcha, NSW, Australia) [Does not enhance in Swan Band filter. Slight interference from glare of nearby bright star. Opaque centre, moderately condensed, sometimes appears faintly stellar in periods of good seeing. Low altitude = 16.0°. Poor seeing. Comparison stars checked using APASS data in Guide 9.0, Method= M, Cat= AQ]
2018 Oct. 07.76 UT: m1=11.6, Dia.=2.5', DC=3/, ... 25.4-cm L(120x) ... Alexsandr Morozov (Novozybkov, Russia) [method S, Lm=6.63]
2018 Oct. 07.46 UT: m1=11.6, Dia.=2.3', DC=4/, ... 40.0-cm L f/4.5(75x) ... Seiichi Yoshida (Gunma, Japan)
2018 Oct. 06.54 UT: m1=11.0, Dia.=2.2', DC=4, ... 40.0-cm L f/4.5(75x) ... Seiichi Yoshida (Gunma, Japan)
2018 Oct. 05.78 UT: m1=10.5, Dia.=2.2', DC=2/, ... 25.4-cm L f/5 (64x) ... Maik Meyer (Limburg, Germany)
2018 Oct. 04.85 UT: m1=11.7, Dia.=1.2', DC=3/, ... 25.4-cm L (120x) ... Alexsandr Morozov (Novozybkov, Russia) [method S]
2018 Oct. 04.80 UT: m1=11.3, Dia.=1.3', DC=2/, ... 25.4-cm L f/5 (104x) ... Maik Meyer (Limburg, Germany)
2018 Oct. 03.85 UT: m1=10.2, Dia.=6', DC=3, ... 20-cm SCT(77x) ... Juan Jose Gonzalez (Aralla, Leon, Spain. Alt. 1720 m, 42º 55' N, 5º 50' W)[Sidgwick method. Tycho-2 comparison stars. SQM: 21.1]
2018 Sep. 30.93 UT: m1=12.3, Dia.=1', DC=3, ... 23.5-cm SCT(138x) ... Carlos Labordena (Castellón, España)
2018 Sep. 30.79 UT: m1=11.6, Dia.=1.3', DC=2/, ... 25.4-cm L f/5(104x) ... Maik Meyer (Limburg, Germany)
2018 Sep. 29.81 UT: m1=11.9:, Dia.=1.0', DC=2/, ... 25.4-cm L 5 104x) ... Maik Meyer (Limburg, Germany)
2018 Sep. 29.76 UT: m1=11.8, Dia.=2', DC=4, ... 25.4-cm L(120x) ... Alexsandr Morozov (Novozybkov, Russia) [method M, green zone, Lm=6.47]
2018 Sep. 22.01 UT: m1=12.2, Dia.=1.5', DC=3/, ... 25.4-cm L(120x) ... Alexsandr Morozov (Novozybkov, Russia) [method M, green zone, Lm=6.11]
2018 Sep. 19.16 UT: m1=12.2, Dia.=1.5', DC=4, ... 20-cm SCT(100x) ... Juan Jose Gonzalez (Aralla, Leon, Spain. Alt. 1720 m, 42º 55' N, 5º 50' W) [Brighter inner coma diameter: 1.5', providing m=12.2 (AQ). Very faint and diffuse outer coma diameter: 5', providing m=10.8:(TK). Sidgwick method. APASS comparison stars. SQM: 21.5]
2018 Sep. 18.71 UT: m1=13.1, Dia.=1.3’, DC=4, ... 25-cm L f:5(83x) ... Chris Wyatt (Walcha, NSW, Australia) [Low altitude= 19.6°; Diffuse coma with moderately condensed centre. Sky slightly hazy due to dust. Comparison stars checked using APASS data in Guide 9.0, Method= M, Cat= AQ]
2018 Sep. 17.67 UT: m1=12.2, Dia.=1.6', DC=5, ... 40.0-cm L f/4.5(144x) ... Seiichi Yoshida (Gunma, Japan)
2018 Sep. 16.68 UT: m1=13.2, Dia.=0.8', DC=6, ... 40.0-cm L f/4.5(144x) ... Seiichi Yoshida (Gunma, Japan)
2018 Sep. 15.04 UT: m1=14.9 CCD, Dia.=0.50', DC=7/, ... 0.25-m f/4.7 Newton + CCD ... Serguey Shurpakov (Observatory C36, Belarus)
2018 Sep. 10.00 UT: m1=12.5, Dia.=1.1', DC=4, ... 20-cm SCT(100x) ... Juan Jose Gonzalez (Aralla, Leon, Spain. Alt. 1720 m, 42º 55' N, 5º 50' W) [Brighter inner coma diameter : 1.1', providing m=12.5 (AQ). Very faint and diffuse outer coma diameter : 3', providing m=11.2:(AQ). Sidgwick method. APASS comparison stars. SQM: 21.5]
2018 Sep. 09.73 UT: m1=13.6, Dia.=1’, DC=3, ... 25-cm L f:5(83x) ... Chris Wyatt (Walcha, NSW, Australia) [Difficult; Very diffuse. Transparent coma, slightly brighter centre. Comparison stars checked using APASS data in Guide 9.0, Method= S, Cat= AQ]
2018 Sep. 01.89 UT: m1=11.0:, Dia.=6', DC=1, ... 20-cm SCT(77x) ... Juan Jose Gonzalez (Alto del Castro, Leon, Spain. Alt. 1720 m, 42º 54' N, 5º 48' W) [In evolution after the recent outburst. Inner coma magnitude was difficult to estimate due to close mag. 13.9 (APASS) star. Faint and diffuse outer coma diameter: 6', providing m=11.0: (TK). Sidgwick method. Tycho-2 comparison stars. SQM: 21.3]
2018 Sep. 01.83 UT: m1=15.7 CCD, Dia.=0.22', DC=8, ... 0.25-m f/4.7 Newton + CCD ... Serguey Shurpakov (Observatory C36, Belarus)
2018 Aug. 31.84 UT: m1=15.7 CCD, Dia.=0.28', DC=7, ... 0.20-m f/4 Schmidt-Newton + CCD ... Serguey Shurpakov (Observatory A98, Belarus)
2018 Aug. 20.06 UT: m1=13.1, Dia.=1.1', DC=4, ... 20-cm SCT(133x) ... Juan Jose Gonzalez (Alto del Castro, Leon, Spain. Alt. 1720 m, 42º 54' N, 5º 48' W) [In evolution after the recent outburst. Brighter inner coma diameter: 1.1', providing m=13.1 (APASS). Very faint and diffuse outer coma diameter: 7', providing m=10.7: (Tycho). Sidgwick method. SQM: 21.5]
2018 Aug. 18.25 UT: m1=13.1:, Dia.=1.25', DC=3, ... 22-cm L(160x) ... Marco Antonio Coelho Goiato (Araçatuba, Brazil) [averted vision]
2018 Aug. 17.91 UT: m1=16.8 CCD, Dia.=0.33', DC=7/, ... 0.20-m f/4 Schmidt-Newton + CCD ... Serguey Shurpakov (Observatory A98, Baran', Belarus)
2018 Aug. 16.96 UT: m1=16.4 CCD, Dia.=0.17', DC=7/, ... 0.25-m f/4.7 Newton + CCD ... Serguey Shurpakov (Observatory С36, Baran', Belarus)
2018 Aug. 15.93 UT: m1=14.3, Dia.=0.7', DC=2, ... 60-cm L(305x) ... Sandor Szabo (Sopron, Hungary)
2018 Aug. 15.73 UT: m1=13.0, Dia.=1’, DC=2/, ... 25-cm L f:5(83x) ... Chris Wyatt (Walcha, NSW, Australia) [Coma very diffuse, opaque across coma, slightly brighter at centre. Post-outburst. Comparison stars checked using APASS data in Guide 9.0, Method= S, Cat= AQ]
2018 Aug. 15.23 UT: m1=14.0, Dia.=0.7’, DC=3, ... 41-cm L(229x) ... Alan Hale (Cloudcroft, New Mexic, USA)
2018 Aug. 14.95 UT: m1=13.2, Dia.=0.6', DC=7, ... 20-cm SCT(200x) ... Juan Jose Gonzalez (Alto del Castro, Leon, Spain. Alt. 1720 m, 42º 54' N, 5º 48' W) [In outburst. Inner coma diameter: 0.6', surrounded by very faint outer coma. Sidgwick method. APASS comparison stars. SQM: 21.3]
2018 Aug. 06.01 UT: m1=17.1 CCD, Dia.=0.26', DC=8, ... 0.25-m f/4.7 Newton + CCD ... Serguey Shurpakov (Observatory С36, Baran', Belarus)
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