2020-04, comets from city center.

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Tried to image a couple of comets from my parents’ backyard, a 5 minute walk from my own apartment. With over 200,000 inhabitants the light pollution in the city of Almere is huge. Naked eye limit is approximately magnitude +4, so visual observations are limited to the moon and planets. Nevertheless I was succesvol in imaging the currently visible comets: C/2017 T2 (PANSTARRS), C/2019 Y1 (ATLAS) and C/2019 Y4 (ATLAS). Equipment used was a William Optics Star 71 telescope (71mm, f=348mm) and EOS R camera mounted on a Rainbow Astro RST-135 mount. Also tried the new software for the Staraid autoguider with the new option guiding on objects like comets. For the last images I installed my good old IDAS Light Pollution Suppression filter inside the telescope.

20200420, 2128UT, C2019Y4, Cnon Eos R, WO Star71 (71mm, f=348mm), ISO1600, 23x1m.
20200422, 2058UT, C2019Y4, Eos R, WO Star71 (71mm, f=348mm), IDAS LP, ISO1600, 10x2m.
20200422, 2058UT, C2019Y4, Eos R, WO Star71 (71mm, f=348mm) ISO1600, 18x2m.
20200426, 2124UT, C2019Y4, Eos R, Wo Star71 (71mm f=348mm), IDAS LPS, ISO1600,13x90s.
20200426, 2221UT, C2019Y1, Eos R, Wo Star71 (71mm, f=348mm), IDAS LPS, ISO1600, 15x90s.
20200426, 2259UT, C2017T2, Eos R, WO Star71 (71mm, f=348mm), IDAS LPS, ISO1600 18x90s.