38P/Stephan-Oterma

38P/Stephan-Oterma
Reported observations:
2018 Oct. 22.25 UT: m1=10.0, Dia.=3', DC=3, ... 22-cm L (60x) ... Marco Antonio Coelho Goiato (Araçatuba, Brazil);[ moonlight; clouds ]
2018 Oct. 21.08 UT: m1=11.1, Dia.=0.8', DC=5, ... 25.4-cm L(120x) ... Alexsandr Morozov (Novozybkov, Russia) [method S, Lm=6.75]
2018 Oct. 22.16 UT m1=10.2, Dia.=3.4', DC=2, ... 25.4-cm L f/5(64x) ... Maik Meyer (Limburg, Germany)
2018 Oct. 17.06 UT: m1=11.1, Dia.=1.3', DC=4, ... 25.4-cm L(120x) ... Alexsandr Morozov (Novozybkov, Russia) [method S, green zone]
2018 Oct. 16.16 UT: m1=10.3, Dia.=2.9', DC=3, ... 25.4-cm L f/5(64x) ... Maik Mayer (Limburg, Germany)
2018 Oct. 16.08 UT: m1=9.1, Dia.=7', DC=2/, ... 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: 21.0]
2018 Oct. 15.15 UT: m1=10.3, Dia.=2.8', DC=3, ... 25.4-cm L f/5(64x) ... Maik Mayer (Limburg, Germany)
2018 Oct. 14.09 UT: m1=10.3 Dia.=3.8', DC=3, ... 25.4-cm L f/5(64x) ... Maik Mayer (Limburg, Germany)
2018 Oct. 13.31 UT: m1=10.1, Dia.=3', DC=4, ... 22-cm L(60x) ... Marco Antonio Coelho Goiato (Araçatuba, Brazil) [clouds, very near stars with m1: 9.90 and m1:10.85]
2018 Oct. 12.06 UT: m1=11.2, Dia.=1.5', DC=4 ... 25.4-cm L(120x) ... Alexsandr Morozov (Novozybkov, Russia) [method S, Lm=6.48]
2018 Oct. 11.15 UT: m1=10.6, Dia.=2.6', DC=3, ... 25.4-cm L f/5(64x) ... Maik Mayer (Limburg, Germany)
2018 Oct. 08.12 UT: m1=10.7, Dia.=1.9', DC=2/, ... 25.4-cm L f/5 (64x) ... Maik Meyer (Limburg, Germany)
2018 Oct. 07.71 UT: m1=11.4, Dia.=3.2', DC=5/, ... 40.0-cm L f/4.5(75x) ... Seiichi Yoshida (Gunma, Japan)
2018 Oct. 07.07 UT: m1=10.7, Dia.=2', DC=3, ... 20-cm T(58x) ... Carlos Labordena (Castellón, España)
2018 Oct. 07.02 UT: m1=11.1, Dia.=1.7', DC=3/, ... 25.4-cm L(120x) ... Alexsandr Morozov (Novozybkov, Russia) [method S]
2018 Oct. 06.77 UT: m1=10.9, Dia.=2.4', DC=6, ... 40.0-cm L f/4.5(75x) ... Seiichi Yoshida (Gunma, Japan)
2018 Oct. 06.23 UT: m1=10.5, Dia.=3', DC=3, ... 22-cm L(60x) ... Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2018 Oct. 06.14 UT: m1=10.5:, Dia.=2.4', DC=2, ... 25.4-cm L f/5 (64x) ... Maik Meyer (Limburg, Germany)
2018 Oct. 04.02 UT: m1=9.9, Dia.=5', DC=2/, ... 20-cm SCT(100x) ... Juan Jose Gonzalez ( Aralla, Leon, Spain, Alt. 1720 m, 42º 55' N, 5º 50' W) [Asymmetric coma. Altitude: 20 deg. Sidgwick method. Tycho-2 comparison stars. SQM: 20.9]
2018 Sep. 22.04 UT: m1=11.7, Dia.=1', DC=3, ...25.4-cm L(120x) ... Alexsandr Morozov (Novozybkov, Russia) [method M, green zone, Lm=6.63]
2018 Sep. 19.17 UT: m1=10.0, Dia.=6', DC=2, ... 20-cm SCT (77x) ... Juan Jose Gonzalez (Aralla, Leon, Spain. Alt. 1720 m, 42º 55' N, 5º 50' W) [Mag. 12.1 (APASS) star in coma. Sidgwick method. Tycho-2 comparison stars. SQM: 21.2]
2018 Sep. 18.74 UT: m1=12.4, Dia.=1.8’, DC=6, ... 25-cm L f:5(83x) ... Chris Wyatt (Walcha, NSW, Australia) [Coma diffuse, close to bright star. Small stellar central condensation. Comparison stars checked using APASS data in Guide 9.0, Method= M, Cat= AQ]
2018 Sep. 17.68 UT: m1=11.5, Dia.=1.3', DC=6, ... 40.0-cm L f/4.5(144x) ... Seiichi Yoshida (Gunma, Japan)
2018 Sep. 17.02 UT: m1=12.4, Dia.=1', DC=3, ... 25.4-cm L (120x) ... Alexsandr Morozov (Novozybkov, Russia) [method M, green zone, Lm=6.44]
2018 Sep. 16.69 UT: m1=11.4, Dia.=2.3', DC=4/, ... 40.0-cm L f/4.5(75x) ... Seiichi Yoshida (Gunma, Japan)
2018 Sep. 15.00 UT: m1=14.0 CCD, Dia.=0.44', DC=4/, ... 0.20-m f/4 Schmidt-Newton + CCD ... Serguey Shurpakov (Observatory A98, Belarus)
2018 Sep. 10.17 UT: m1=9.9, Dia.=5', DC=2, ... 20-cm SCT(77x) ... Juan Jose Gonzalez (Aralla, Leon, Spain; Alt. 1720 m, 42º 55' N, 5º 50' W) [Mag. 11.3 (TK) star in coma. Sidgwick method. Tycho-2 comparison stars. SQM: 21.2]
2018 Aug. 24.02 UT: m1=14.7 CCD, Dia.=0.33', DC=8, ... 0.20-m f/4 Schmidt-Newton + CCD ... Serguey Shurpakov (Observatory A98, Belarus)
2018 Aug. 20.15 UT: m1=10.5, Dia.=5', DC=2/, ... 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: 21.1]
2018 Aug. 18.76 UT: m1=12.9, Dia.=1.5’, DC=4, ... 25-cm L f:5(83x) ... Chris Wyatt (Walcha, NSW, Australia) [Diffuse, moderately condensed semi-opaque centre. Does not appear to enhance in Swan Band filter. Comparison stars checked using APASS data in Guide 9.0, Method= M, Cat= AQ]
2018 Aug. 18.03 UT: m1=14.3 CCD, Dia.=0.33', DC=7/, ... 0.20-m f/4 Schmidt-Newton + CCD ... Serguey Shurpakov (Observatory A98, Baran', Belarus)
2018 Aug. 15.76 UT: m1=13.1, Dia.=1.6’, DC=2/, ... 25-cm L f:5(83x) ... Chris Wyatt (Walcha, NSW, Australia) [Very diffuse, slight brightening to centre. Comparison stars checked using APASS data in Guide 9.0, Method= S, Cat= AQ]
2018 Aug. 15.17 UT: m1=10.9, Dia.=3', DC=2/, ... 20-cm SCT(100x) ... Juan Jose Gonzalez (Alto del Castro, Leon, Spain. Alt. 1720 m, 42º 54' N, 5º 48' W) [Motion followed for a 75-min period. Astronomical twilight. Sidgwick method. Tycho-2 comparison stars. SQM: 20.9]
2018 Aug. 12.05 UT: m1=13.5, Dia.=0.6', DC=0, ... 0.60-m f/4 L(244x, 305x) ... Gabor Santa (Tarján, Hungary) [coma is more diffuse in PA=240, but no tail visible, h=22 deg.]
2018 Aug. 10.17 UT: m1=11.5, Dia.=2.5', DC=3, ... 20-cm SCT(133x) ... Juan Jose Gonzalez (Alto del Castro, Leon, Spain. Alt. 1720 m, 42º 54' N, 5º 48' W) [Brighter than expected. Astronomical twilight. Sidgwick method. Tycho-2 comparison stars. SQM: 20.5]
2018 Aug. 08.76 UT: m1=14.1, Dia.=1.2’, DC=3, ... 25-cm L f:5 (83x) ... Chris Wyatt (Walcha, NSW, Australia) [Difficult; diffuse coma, slightly brighter in centre. Comparison stars checked using APASS data in Guide 9.0, Method= S, Cat= AQ]
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