comet and spectroscopic observations on 5 may

This evening was again a clear evening/night and i started at 22:30h local time to observe comets and Be stars with the spectroscope LHiRes III. comets which are observed are: C/2017 T2, C/2019 Y1, C/2019 Y4, C/2020 B2 (not detected). also remote observations with the S9 observatory UGent with the e-shel spectrograph, a test of the limit of the instrument by taken a spectrum of the core of M81 galaxy (about magn. 7)