comet observations and spectroscopic observations during night 6/7 aug. 2018 follow-up observations of comets: 21P/G-Z, 29P/S-W1, 66P, 78P, 137P, C/2014 OE4, C/2017 K2, C/2017 M4, C/2018 M1. spectroscopic observations of a Be-Stars: 28 Cygni, V442 Andromeda.