C/2017 B3 (LINEAR)

C/2017 B3 (LINEAR)
Reported observations:
2019 Sep. 05.70 UT: m1=14.0, Dia.=0.8’, DC=5/, ... 40-cm L(108x) ... Chris Wyatt (Walcha, NSW, Australia) [Centre opaque, stellar pseudo-nucleus visible in good seeing. Comparison stars checked using APASS data in Guide 9.0, Method= M, Cat= AQ]
2019 Sep. 03.69 UT: m1=13.8, Dia.=1.3’, DC=5/, ... 40-cm L(108x) ... Chris Wyatt (Walcha, NSW, Australia) [Does not enhance in Swan Band filter. Diffuse coma, opaque centre, sometimes stellar pseudo-nucleus visible in periods of good seeing. Comparison stars checked using APASS data in Guide 9.0, Method= M, Cat= AQ]
2019 Aug. 28.70 UT: m1=14.0, Dia.=1.3’, DC=5/, ... 40-cm L f:4.5(108x) ... Chris Wyatt (Walcha, NSW, Australia) [Opaque centre, sometimes stellar pseudo-nucleus visible, fading to edges. Does not enhance in Swan Band filter. Comparison stars checked using APASS data in Guide 9.0, Method= M, Cat= AQ]
2019 Aug. 08.70 UT: m1=14.4, Dia.=1.1’, DC=6, ... 40-cm L(108x) ... Chris Wyatt (Walcha, NSW, Australia) [Faint stellar pseudo-nucleus, coma diffuse with opaque centre. Comparison stars checked using APASS data in Guide 9.0, Method= M, Cat= AQ]
2019 Aug. 03.69 UT: m1=14.2, Dia.=1.4’, DC=6, ... 40-cm L f:4.5(108x) ... Chris Wyatt (Walcha, NSW, Australia) [Faint stellar pseudo-nucleus, hazy outer coma, does not enhance in Swan Band filter. Comparison stars checked using APASS data in Guide 9.0, Method= M, Cat= AQ]
2019 May  08.74 UT: m1=14.4, Dia.=0.6’, DC=2/, ... 25-cm L f:5(83x) ... Chris Wyatt (Walcha, NSW, Australia) [Very small, diffuse, slight brightening to centre. Comparison stars checked using APASS data in Guide 9.0. Method= S, Cat= AQ]
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