comet and spectroscopic observations on 15 april.

Initially there was quite a lot of cloud cover and no ideal conditions to observe, around 23h local time, it was better and the high clouds slowly disappeared. SQM went to 19.15 which is very good in my area. Two comets were observed C/2017 T2 and C/2019 Y4. With the spectroscope 3 Be stars were observed: Cap Dra, HD 20134 and eps Cas. I made also an update of the Af(rho) plot of comet C/2019 Y4 (ATLAS) and put it on my website.

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