46P/Wirtanen

46P/Wirtanen
Reported observations:
2018 Sep. 19.12 UT: m1=11.6, Dia.=2.0', DC=2/, ... 20-cm SCT(133x) ... Juan Jose Gonzalez (Aralla, Leon, Spain. Alt. 1720 m, 42º 55' N, 5º 50' W) [Altitude: 25 deg. Observation made under better conditions, providing a wider coma diameter and brighter magnitude estimate in comparison with my previous Sep. 10 observation. Sidgwick method. APASS comparison stars. SQM: 21.3]
2018 Sep. 18.73 UT: m1=12.4, Dia.=3.4’, DC=2, ... 25-cm L f:5(39x) ... Chris Wyatt (Walcha, NSW, Australia) [Coma enhances slightly in Swan Band filter. Very diffuse. Sky slightly hazy due to dust. Comparison stars checked using APASS data in Guide 9.0, Method= S, Cat= AQ]
2018 Sep. 17.70 UT: m1=[13.4, negative, ... 40.0-cm L f/4.5(257x) ... Seiichi Yoshida (Gunma, Japan)
2018 Sep. 16.70 UT: m1=[13.6, negative, ... 40.0-cm L f/4.5(144x) ... Seiichi Yoshida (Gunma, Japan)
2018 Sep. 10.10 UT: m1=12.4, Dia.=1.5', DC=3, ... 20-cm SCT(133x) ... Juan Jose Gonzalez (Aralla, Leon, Spain. Alt. 1720 m, 42º 55' N, 5º 50' W) [Altitude: 27 deg. Sidgwick method. APASS comparison stars. SQM: 21.3]
2018 Sep. 09.74 UT: m1=13.6, Dia.=1.3’, DC=3, ... 25-cm L f:5(83x) ... Chris Wyatt (Walcha, NSW, Australia) [Difficult. Very diffuse. Comparison stars checked using APASS data in Guide 9.0, Method= S, Cat= AQ]
2002 Nov. 07.14 UT: m1=11.6, Dia.=2', DC=2 ... 20.3-cm L (63x) ... Piotr Guzik (Krosno, Poland) [Faint diffuse object]
2002 Nov. 04.80 UT: m1=11.8:, Dia.=3', DC=2 ... 32-cm L (58x) ... Yoshimi Nagai (Yamanashi, Japan) [in Zodiacal light. comet is diffusing, hard object]
2002 Nov. 02.81 UT: m1=11.5:, Dia.=4', DC=2 ... 32-cm L (58x) ... Yoshimi Nagai (Yamanashi, Japan) [in Zodiacal light]
2002 Oct. 19.13 UT: m1=10.8, Dia.=3', DC=3 ... 20.3-cm L (63x) ... Piotr Guzik (Krosno, Poland) [Easily visible, quite large object, a bit brighter than expected]
2002 Oct. 16.81 UT: m1=11.1, Dia.=2.0', DC=2 ... 32-cm L (58x) ... Yoshimi Nagai (Yamanashi, Japan) [comet is diffusing]
2002 Oct. 12.82 UT: m1=10.7, Dia.=2.6', DC=3 ... 32-cm L (58x) ... Yoshimi Nagai (Yamanashi, Japan)
2002 Oct. 02.19 UT: m1=9.2, Dia.=4', DC=3 ... 20-cm SCT (77x) ... Juan Jose Gonzalez (Puerto de la Cubilla, alt. 1610 m, Asturias, North Spain) [Moonlight]
2002 Oct. 01.79 UT: m1=10.3, Dia.=2.0', DC=6 ... 32-cm L (58x) ... Yoshimi Nagai (Yamanashi, Japan) [clear object]
2002 Sep. 30.13 UT: m1=8.8:, Dia.=1.5', DC=4 ... 25x100 B ... Werner Hasubick (Buchloe, Germany)
2002 Sep. 28.49 UT: m1=9.6, Dia.=2', DC=4 ... 20-cm L ... Alan Hale (Cloudcroft, New Mexico) [fairly bright moonlight. There clearly seems to have been an outburst of some sort; the comet is brighter -by almost two magnitudes- than it was at my previous observation in mid-September]
2002 Sep. 28.18 UT: m1=10.6, Dia.=2', DC=3, no tail ... 20-cm SCT (50x) ... Carlos Labordena (Castellon, Spain)
2002 Sep. 26.19 UT: m1=8.7, Dia.=4', DC=3 ... 11x80 B ... Juan Jose Gonzalez (Puerto de Aralla, alt.1720 m, Leon, North Spain) [Possibly in outburst. Moonlight, observation made under good conditions, from a mountain location]
2002 Sep. 26.18 UT: m1=8.8, Dia.=5', DC=5 ... 20-cm SCT (36x) ... Juan Jose Gonzalez (Puerto de Aralla, alt.1720 m, Leon, North Spain) [Possibly in outburst. Moonlight; observation made under good conditions, from a mountain location]
2002 Sep. 12.10 UT: m1=10.6, Dia.=2.5', DC=2 ... 20.3-cm L (108x) ... Piotr Guzik (Krosno, Poland) [Easy object thanks to very transparent sky]
2002 Sep. 09.12 UT: m1=10.5, Dia.=2.9', DC=4 ... 25x100 B ... Werner Hasubick (Buchloe, Germany)
2002 Sep. 08.14 UT: m1=13.5, Dia.=10", DC=7 ... 45-cm f:4.5 L (160x) ... Jo Jones & Gary Gawthrope (Hoober Obs, Rotherham, England)
2002 Sep. 05.10 UT: m1=10.5:, Dia.=2', DC=2 ... 20-cm L (63x) ... Piotr Guzik (Krosno, Poland)
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