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.
spectroscopic observations on 11 oct.
with the C11-cassegrain telescope + LHiRess high resolution spectrograph (grating 2400 l/mm) i could obtain some spectra in H-alpha region of Be-stars: HD 21455, omi Cas, psi Per, V2120 Cyg.
spectroscopic observations on 10 oct.
Several high resolution spectra of the H-alpha region could be obtained from Be-stars: gam Cas, HD 6343, phi Per, V764 Cas.
spectroscopic observation on 9 oct.
with full moon and clear sky, i could obtain a spectra of CT Cam.
comet and spectroscopic observations on 2 oct. 2022
it was a nice clear evening after the clouds cleared. The moon phase was 0.49 but quite low on the horizon. I noticed on the SQM meter reading 19.45, normally i can get about 19.3. I have never seen this here in my backyard. Could the energy crisis be in between for something that lights get extinguished more ? Anyway… i started with some comets including: 22P, 61P, 285P, 286P, 395P, C/2019 O3, C/2020 H6, C/2020 F5, C/2022 E3, C/2022 L2. With my 2-nd setup C11-telescope and the LHiRess high-resolution spectrograph, I was able to record some Be stars a spectra. These are: V378 And, HD21620, 16 Peg and 31 Peg.
comet and spectroscopic observations on 29 sept.
a clear night with low transparancy due high humidity (> 90%). I observed wome comets and spectroscopic observations of Be-stars as well.
comets that are observed are: 74P(not detected), 158P(not detected), 395P, 442P, C/2020 F5, C/2022 E3.
Be-stars where a spectrum could be obtained are: pi Aqr, tet Ari.
new COMET C/2022 R3 (Leonard)
object that was observed on 21 sept. is now assigned as comet C/2022 R3 (Leonard) via M.P.E.C. 2022-S250
comet and spectroscopic observations on 21 sept.
after the high clouds are gone at midnight, i started with observations of comet C/2022 E3 and a possible comet, mentioned on the PCCP. For this last object the total exposures was about 2 hours. This object could be detected and has a magnitude of about 20.3 in aperture radius of 5″.5. With the C11 and LHiResIII spectrograph, 4 spectra could be obtained of Be-stars.