C/2016 R2 (PANSTARRS)

C/2016 R2 (PANSTARRS)
Reported observations:
2017 Nov. 16.18 UT: m1=11.7, Dia.=1.3', DC=3/, ... 20-cm SCT (133x) ... Juan Jose Gonzalez (Puerto de Aralla, Leon, Spain; Alt. 1530 m, 42º 54' N, 5º 48' W) [Sidgwick method. APASS comparison stars. SQM: 20.9]
2017 Nov. 14.89 UT: m1=13.4, Dia.=0.4', DC=5, ... 60-cm L (244x) ... Sandor Szabo (Hungary)
2017 Nov. 14.19 UT: m1=11.8, Dia.=1.3', DC=3, ... 20-cm SCT (133x) ... Juan Jose Gonzalez (Puerto de Aralla, Leon, Spain; Alt. 1490 m, 42º 54' N, 5º 48' W) [Field stars checked in DSS. Sidgwick method. APASS comparison stars. SQM: 21.0]
2017 Nov. 14.14 UT: m1=12.8, Dia.=1', DC=3, ... 22-cm L (160x) ... Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2017 Nov. 09.49 UT: m1=12.9, Dia.=1’, DC=3, ... 25-cm L f:5 (83x) ... Chris Wyatt (Walcha, NSW, Australia) [Difficult due to glare from bright star at edge of field. Comparison stars checked using APASS data in Guide 9.0; Method= S; Cat= AQ]
2017 Oct. 30.69 UT: m1=12.8, Dia.=2’, DC=2/3, ... 25-cm L f:5 (83x) ... Chris Wyatt (Walcha, NSW, Australia) [Coma diffuse, interference from mag 12.8 star in coma; Slight brightening to centre, does not enhance in Swan Band filter. Comparison stars checked using APASS data in Guide 9.0; Method= S; Cat= AQ]
2017 Oct. 27.99 UT: m1=13.5, Dia.=0.7', DC=1-2, ... 0.40-m Dobsonian f/4.4 (200x) ... Gabor Santa (Göd, Hungary) [Diffuse. Close (6') to Berkeley 20 open clulster which was brighter and bigger]
2017 Oct. 26.68 UT: m1=13.2, Dia.=0.7', DC=3/, ... 40.0-cm L f/4.5 (257x) ... Seiichi Yoshida (Gunma, Japan)
2017 Oct. 03.20 UT: m1=13.2, Dia.=1.1', DC=3, ... 20-cm SCT (133x) ... Juan Jose Gonzalez (Puerto de Aralla, Leon, Spain; Alt. 1530 m, 42º 54' N, 5º 48' W) [Field stars checked in DSS. Sidgwick method. APASS comparison stars. SQM: 21.0]
2017 Sep. 27.61 UT: m1=13.9, Dia.=0.6’, DC=3, ... 25-cm L f:5 (83x) ... Chris Wyatt (Walcha, NSW, Australia) [Coma very diffuse, small. Visible in periods of good seeing. Slight haze from dust and bushfire smoke. Comparison stars checked using APASS data in Guide 9.0; Method= S; Cat= AQ]
2017 Sep. 25.73 UT: m1=14.0, Dia.=0.6', DC=3, ... 40.0-cm L f/4.5 (257x) ... Seiichi Yoshida (Gunma, Japan)
2017 Sep. 21.75 UT: m1=13.8, Dia.=0.9’, DC=3, ... 25-cm L f:5 (83x) ... Chris Wyatt (Walcha, NSW, Australia) [Outer coma diffuse, slight brightening to centre. Does not enhance in Swan Band filter. Comparison stars checked using APASS data in Guide 9.0; Method= S; Cat= AQ]
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