comet and spectroscopic observations on 7 oct.

During this clear evening with reasonable transparency, I was able to observe a few comets with the Orion Optics 0.4-m f/3.8 telescope: 29P, 107P, 186P, 431P, C/2017 K2, C/2019 U5, C/2020 PV6, C/2021 E3 and a possible comet, mentioned on the PCCP and could be detected. With the C11 + spectrograph LHiResIII, i ttok a spectrum of several stars for H-alpha detail: 13 Tau, 25 Peg, 31 Peg, bet Psc, kap Aql, pi Aqr.