comet and spectroscopic observations on 20 july.
after several nights of clouds i could observe again. I started simultanously with comets and spectroscopic observations: comets which are observed are: 115P, 257P, C/2017 T2, C/2018 N2, C/2019 K7, C/2020 F3 (NEOWISE), C/2020 H4 … Read more