We had after some several weeks of cloudy weather a clear night and i observed several comets: 12P, 180P, 402P, C/2019 T4, C/2019 U5, C/2020 R7, C/2020 s4, C/2022 L2, C/2022 U4, C/2023 A3, C/2023 E1, P/2023 B1
spectroscopic and comet observations on 25 april
a clear night as start was perfect to start with some observations. Comets that could be observed are: 65P, 118P, 119P, 180P, C/2019 U5. after the last comet, i must close the observatory due incoming clouds. With the C11 + LHiRess spectrograph i could obtaihne 2 spectra of the H-alpha region in high resolution of Be-stars: HD 175863, teta CRB.
spectroscopic and comet observations on 18 april
Comet and spectroscopic observations on 2-3 april
a very clear night but with moonphase of 0.91 we had disturbing moonlight. SQM @ zenit was 18.9. I could observe some comets: 29P, 364P, C/2019 U5, C/2020 R7, C/2022 L2 and object C8AY5Y2 mentioned on the PCCP. Spectroscopic observations in high resolution (R = ca. 15000) were made from emission B-stars: 53 Boötis, kappa Draconis and CQ Ursa Major with my C11 + LHiRess III spectrograph with 2400 l/mm grating.
comet observations on 27 march
new comet C/2023 C2 (ATLAS)
This object was mentioned on the PCCP and observed by the Telescope.Live team and myself on 28 febr. 2023 and 14 march 2023 while this was still mentione don the PCCP. On 26 march, was this object assigned as comet C/2023 C2 (ATLAS)
new comet C/2023 E1 (ATLAS) on 10 march
I could observe an object, while this was still mentioned on the PCCP of the minor planetcenter on 10 march with a remote Telescope 0.61- f/6.7 reflector located in Rio Hurtado, Chile. Later was this object assigned as comet C/2023 E1 (ATLAS) via CBET 5233
comet observations on 1 march 2023
new comet C/2023 A3 on 1 march 2023
I observed comet C/2023 A3 with a remote Telescope.Live 0.61- f/6.5 reflector located in Rio Hurtado, Chile. This comet was assigned as comet C/2023 A3 (Tsuchinsan-ATLAS) via CBET 5228
comet and spectroscopic observations on 26 febr. 2023
a clear night with very good transparancy and low humidity. Perffect night to observe despite some disturbing moonlight. several comets could be observed: 29P, 118P, 119P, 211P, C/2020 S4, C/2022 A3, C/2023 B1. with the C11 and LHIRES III spectograph some spectra in high resolution could be obtained of H-alpha emission stars: V1165 Tau, PZ Gem, CQ Uma.
