spectroscopic and comet observations on 12 april

A clear and moonless night promises to be a good night for observing. I started with comet observations, a long list to observe until the morning, unfortunately at 1 am local time clouds came in and I had to stop the observations. Comets that were observed are: 9P (uncertain due near star), 99P, 162P, 409P (clouds), C/2020 T2, C/2021 A1, C/2021 A2. With the C11 and spectrograph I could observe 2 spectra: V801 Cas and gam Cas (HeI detail @ 6678Å), each > 1 hour observation per Be-star.

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