After the clouds are gone, i could obtain a spectrum of Be star: 12Vul
spectroscopic observation on 5 july
for the spectroscopic observing campaign for TESS Be-stars i could obtain spectra of: iot Lyr and 12 Vul.
comet and spectroscopic observations on 4 july
comet and spectroscopic observations on 3 july
spectroscopic observation on 1 july
for a spectroscopic observing campaign of the TESS Be-stars, i observed this evening iot Lyr.
Comet and spectroscopic observations on 27 june
A very clear night with very good transparency invites me to observe. Several comets were observed: C/2017 K2, C/2019 U5, C/2020 H6, C/2020 J1, C2022 E3. Also spectra could be obtained: iot Lyr and 12 Vul.
tracking issue with ASA DDM mount on 20 june and spectroscopic observations
I found that the tracking of my ASA DDM85 mount started to show some deviation. I therefore recorded a few pointing models this night and then performed polar alignment. The result was that, for the polar alignment, I had to adjust the altitude knob of the mount quite a bit. The final polar deviation is now 8 arcsec in RA and 5 arcsec in DEC according to the software calculations. As a test, I observed comet C/2017 K2 (PANSTARRS) and the tracking proved to be correct. Meanwhile i could capture 2 spectra of Be-stars: QR Vul and iot Lyr.
new comet C/2022 L2 observed on 13 and 17 june
On 13 and 17 june, i observed an object mentioned on the PCCP of the minor planetcenter and could detect this object? moon was disturbing and also the ‘grey short nights’ (sun is not lower than 15° of the horizon). Object was situated in a dens starfield and was hard to detect. Later on june 20 was this object assigned as comet C/2022 L2 (ATLAS).
comet and spectroscopic observation on 17/18 june
Due to the lattitude aand the summer, I can only start observations quite late. It only gets reasonably dark around midnight and the sun does not go lower then 15° below the horizon. transparancy is very poor and the moon unfortunately interferes too. I was able to observe a few comets: C/2017 K2, C/2020 K1, C/2020 U5 (not detected), C/2022 E3 and an object mentioned on the PCCP as possible comet. With the C11 and LHiRes-III spectrograph I was able to record spectra of iot Lyr and QR Vul, this for the purpose of spectroscopy opportunity for Be stars w/ TESS space photometry + CHARA interferometry, a ground based observing project with Jonathan Labadie-Bartz
comet and spectroscopic observations on 17 june
this evening i could observe comet C/2017 K2, C/2020 K1, C/2022 E3. With the C11 and LHiReSS III, i obtained 2 spectra of Be-stars: iot Lyr & QR Vul.
