again a clear evening. i started with observations of some comets: C/2017 K2, C/2020 K1, C/ 2020 V2, C/2021 D2 . some spectra could be obtained of: gam Cas (H-alpha @ 6562.8 Å) and gam Cas for HeI-detail @ 6678 Å, 13 Oph.