during a short period of clear sky, i could obtain spectra of Be-stars: PZ Gem, lam Eri.
comet and spectroscopic observations on 26 dec.
a clear day and night after 2 weeks of cloudy and rain. i observed some comets: 29P (in outburst !), 61P, 127P, 179P, 408P, C/2020 V2, C/2021 Y1, C/2022 J2, C/2022 U2, C/2022 U3, P/2022 V1 and also an object mentioned on the PCCP as possible comet and could be detected and confirmed with cometary appearance. Simultanously i could also capture several high resolution spectra in H-alpha region, with my second observatory, of Be-stars: V439 Cep, PZ Gem, HD 208682, HD 50658, 6 Cep.
spectroscopic observations on 15 dec.
during this clear night and low temperatures (-5 °C) i could obtain several spectra of Be stars: 25 Peg, HD 32188, V357 Lac, V801 Cas.
spectroscopic observations on 14 dec.
a very cold night ( temp: – 4°C) but a clear night. some spectra could be obtained of Be-stars: 14 Lac, 16 Peg, HD 22298, PZ Gem.
comet and spectroscopic observations on 12 dec.
this evening i could after some technical issues due the very high humidity (> 90% RH) starting with observing comets. Comets wich could be observed are: 22P, 61P, 196P, C/2020 F5, C/2021 T4, C/2021 Y1, P/2019 LD2 (not detected). simultanously, i could obtain some high resolution spectra of several Be-stars: 11 Cam, HD22780, HD 24479, PZ Gem, V422 And.
spectroscopic observations on 9 dec.
during this clear night, but low transparancy, i obtained several spectra of Be-stars: ups Cyg, PZ Gem, HD 2012044, HD 201836, HD 23800, 48 Per.
comet and spectroscopic observations on 25 nov.
the evening and night looks promising, with a very good transparancy and SQM of 19.2 … 19.5 , which is pretty good for my surrounding, i could observe some comets and could obtain some spectra of Be-stars in high resolution (R ~15000) of the H-alpha region. unfortunately, i had to struggle with some technical problems. Apparently the sensor of my CCD camera was suffering from dew formation. the high relative humidity of 89% will also be involved. However, after 2 hours, problem was partially solved and I could finally start observing comets. comets that could be observed are: 22P, 29P, 44P, 61P, 127P, 196P, C/2020 F5, C/2020 U5, C/2021 T4, C/2021 Y1, C/2022 L2. Spectra could be obtained of Be-stars: zet Tau, V581 Per, V442 And, PZ Gem, Pleione, HD 18552.
new comet P/2022 V1 (WISE-Lemmon) on 13 nov.
I observed an object, mentioned on the PCCP with my 0.4-m f/3.8 telescope and could detect and confirm the cometary activity of this object. Later was this object assigned as comet P/2022 V1 (WISE-Lemmon) via CBET 5193, issued on 2022 nov. 23
comet and spectroscopic observations on 13 nov.
after a very nice day we have a clear night, with some little fog and lower transparancy and SQM about 18.9 in zenit. I could observe several comets with my 0.4-m f/3.8 newton telescope: 22P, 44P, 61P, 196P, C/2020 F5 (not detected), C/2020 H6, C/2020 U5, C/2022 E3, C/2022 L2 and an object mentioned on the PCCP. With the second setup, C11-cassegrain + LHiRess-III spectrograph, i could obtain several spectra in H-alpha region in high resolution (R~15000): PZ Gem, pi Aqr, bet Psc, 16 Peg and 8 Lac-B.
comet and spectroscopic observations on 18 oct.
weatherconditions are a clear night but with low transparancy, SQM in zenit was about 19.0. comet that could be observed with the 0.4-m f/3.8 corrected newton (OO AG16) are: 22P, 61P, C/2020 F5, C/2020 H6, C/2020 U5, C/2022 E3 and C/2022 L2. With my second setup of C11-cassegrain + LHiRess III spectrograph (2400 l/mm grating) i could obtaine a spectra of H-alpha region of Be-stars: V442 And, omi And , 14 Lac.