C/2017 M4 (ATLAS)

C/2017 M4 (ATLAS)
Reported observations:
2018 Sep. 17.46 UT: m1=[13.7, negative, ... 40.0-cm L f/4.5(257x) ... Seiichi Yoshida (Gunma, Japan)
2018 Aug. 10.83 UT: m1=15.5 CCD, Dia.=0.44', DC=3, ... 0.20-m f/4 Schmidt-Newton + CCD ... Sergey Shurpakov (Observatory A98, Baran', Belarus)
2018 Aug. 08.40 UT: m1=14.1, Dia.=0.6’, DC=3, ... 25-cm L f:5 (83x) ... Chris Wyatt (Walcha, NSW, Australia) [Difficult. Small diffuse coma. Comparison stars checked using APASS data in Guide 9.0, Method= S, Cat= AQ]
2018 Aug. 02.89 UT: m1=15.1 CCD, Dia.=0.39', DC=4,, ... 0.20-m f/4 Schmidt-Newton + CCD ... Sergey Shurpakov (Observatory A98, Baran', Belarus)
2018 Aug. 01.37 UT: m1=14.2, Dia.=0.8’, DC=2/, ... 25-cm L f:5 (83x) ... Chris Wyatt, Walcha, NSW, Australia) [Difficult, very diffuse. Visible in good seeing. Comparison stars checked using APASS data in Guide 9.0, Method= S, Cat= AQ]
2018 July 30.37 UT: m1=14.1, Dia.=0.7’, DC=3, ... 25-cm L f:5 (83x) ... Chris Wyatt (Walcha, NSW, Australia) [Difficult due to glare from bright star in field. Visible in periods of good seeing with bright star just out of field. Coma small. Comparison stars checked using APASS data in Guide 9.0, Method= S, Cat= AQ]
2018 July 13.93 UT: m1=13.9, Dia.=0.5', DC=6, ... 60-cm L (188x) ... Sandor Szabo (Sopron, Hungary)
2018 July 13.51 UT: m1=13.6, Dia.=0.4', DC=6, ... 40.0-cm L f/4.5 (257x) ... Seiichi Yoshida (Gunma, Japan)
2018 July 12.94 UT: m1=14.7 CCD, Dia.=0.28', DC=8/, ... 0.20-m f/4 Schmidt-Newton + CCD ... Sergey Shurpakov (Observatory A98, Baran', Belarus)
2018 July 08.93 UT: m1=13.5, Dia.=0.7’, DC=6/, ... 35-cm L (200x) ... Gábor Sánta (Göd, county Pest, Hungary) [h= 74 deg., NELM= 5,8. Coma is very obvious, with 150x it is like a planetary nebula, with 200x it seems diffuse, and, with 275x, it is a very strongly condensed comet with exponential light profile, and, in the best seconds, a 16th-magnitude nucleus can be suspected. Very nice comet!]
2018 June 12.98 UT: m1=14.4, Dia.=--, DC=9, ... 20-cm SCT (133x) ... Juan Jose Gonzalez (Pandorado, Leon, Spain; Alt. 1190 m, 42º 47' N, 6º 00' W) [Quasi-stellar appearance. In-focus method. Comparison stars taken from Henden photometry near DQ Her. Field stars checked in DSS. Limiting star magnitude near comet: 14.7 (Henden). SQM: 21.6]
2018 May  21.90 UT: m1=15.7 CCD, Dia.=0.39', DC=4/, ... 0.20-m f/4 Schmidt-Newton + CCD ... Sergey Shurpakov (Observatory A98, Baran', Belarus)
2018 May  07.96 UT: m1=15.1 CCD, Dia.=0.33', DC=6/, ... 0.25-m f/4.7 Newton + CCD ... Sergey Shurpakov (Observatory C36, Baran', Belarus)
2018 May  04.95 UT: m1=15.9 CCD, Dia.=0.18', DC=6, ... 0.25-m f/4.7 Newton + CCD ... Sergey Shurpakov (Observatory C36, Baran', Belarus)
2018 May  02.98 UT: m1=15.8 CCD, Dia.=0.18', DC=6, ... 0.25-m f/4.7 Newton + CCD ... Sergey Shurpakov (Observatory C36, Baran', Belarus)
2018 Apr. 08.02 UT: m1=15.6 CCD, Dia.=0.37', DC=7/, ... 0.25-m f/4.7 reflector + CCD ... Sergey Shurpakov (Observatory C36, Baran', Belarus)
2018 Apr. 09.07 UT: m1=16.2 CCD, Dia.=0.37', DC=8, ... 0.25-m f/4.7 reflector + CCD ... Sergey Shurpakov (Observatory C36, Baran', Belarus)
2018 Mar. 05.12 UT: m1=16.3 CCD, Dia.=0.17', DC=9, ... 0.20-m L f/4 + CCD ... Sergey Shurpakov (Observatory C36, Baran', Belarus)
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