comet and spectroscopic observations on 21 jan.2019

comet observations on 21 jan with disturbing moonlight (99% moon) until high clouds were coming in. Observed comets are: 29P/S-W1, 64P and 46P. Comets 198P, P/2019 A3 are also observed but not detected.

update of Afρ-plot for comet 64P and comet 46P are made on behalf of CARA consortium

spectroscopic observations in high resolution (H-alpha detail) are made for several stars: V442 And, Pleione, Merope, HD 30453, HD 20210, BK Cam, 69 Ori.