comet and spectroscopic observations on 16 sept.

It turns out to be a good night for sightings, although there are sometimes veiled clouds. I started observing comets but after 4 comets I had to interrupt the observations because of clouds and gusts of wind. comets that I could observe: A/2019 U5, C/2019 L3, C/2019 O3. Simultanously i started spectroscopic observations with C11 + LHiResIII for high resolution : gam Cas for HeI detail @ 6678Å, gam Cas for H-alpha detail, HD 21362, phi And.

new comet C/2020 R4 (ATLAS) on 16 sept.

an object mentioned on the PCCP was observed with the 0.7-m f/8 Ritchey Chrétien of the TelescopeLive network in Almeria, Spain (MPC Z08) while this object was still mentioned on the PCCP. We could confirm the cometary appearance of this object and appears as central condensation with a small coma of about 8″ and some hint of a tail in p.a. of 310 degrees. Later this object was assigned as comet C/2020 R4 (ATLAS) via CBET issued on 16 sept. and MPEC S33: COMET C/2020 R4 (ATLAS)

comet and spectroscopic observations on 14 sept.

Observation conditions are not so good, there are regularly high clouds, just after midnight I had to interrupt the observations because of too much cloud cover. According to the comets, I have been able to observe: 257P, C/2017 Y2, C/2018 N2, C/2018 U1, C/2019 K7, C/2019 U6. At the same time, I was able to record some spectra with the C11 and LHIRESIII spectrograph: gam Cas for HeI emission @ 6678 Å, V442 And (H-alpha detail) , ALFIRK (H-alpha detail)

comet and spectroscopic observations on 13 sept.

During this clear night with very good transparancy and weather is observed several comets: 11P, 29P, 215P, 257P, C/2016 Q2, C/2017 B3, C/2017 K2, C/2017 Y2, C/2018 N2, C/2018 U1, C/2019 K7, C/2019 O3, C/2019 T3, A/2019 U5, C/2019 U6, C/2020 N1, C/2020 Q1, P/2020 P2. With the C11 and LHiResIII spectrograph i could take spectra: gam Cas for HeI detail @ 6678 Å, gam Cas for H-alpha detail, QR Vul, HD 206773.

Vivaldi