new comet C/2021 T4 (LEMMON) on 11 oct.
after an object, newly listed on the PCCP, I observed this with a 0.61-m f/6.5 telescope from Telescope.Live in Chile, and could possibly be a comet because of a small elongated coma of 9 arcsec. … Read more
after an object, newly listed on the PCCP, I observed this with a 0.61-m f/6.5 telescope from Telescope.Live in Chile, and could possibly be a comet because of a small elongated coma of 9 arcsec. … Read more
during this clear night i could catch some spectra of following Be-stars: lam Eri, HD 196712, HD20017, FF Cam, AX Mon, PZ Gem. i couldn’t observe comets due huge problems with mount and CCD-camera.
after a very nice day without clouds an 17 degr. temperature, i could start early in hte evening with observations of comets and spectra of Be-stars. comets that could be observed are: 4P, 10P, 17P, … Read more
after clouds where gone i could obtain a spectrum of PZ Gem for e short time of 40 min.
After a very beautiful sunny day, the trend continued for a clear night. I therefore observed both comets and could obtain spectra. Unfortunately around 1 am – local time – during the night, I had … Read more
during this clear night with disturbing moon, i could obtain a spectrum of PZ Gem for a student project of univ. of Amsterdam (Netherlands). exposure-time: 7 x 1200 sec.
After a storm, clear skies came with occasional clouds. I was still able to record some spectra of some Be stars: 48 Per, V777 Cas, PZ Gem.
With a remote 0.61-m f/6.5 telescope from Telescope.Live, comet 57P was observed. An outburst could be observed (sudden brightening of the comet).
After the clouds slowly disappeared in the late evening and we got a clear night with an almost full moon, I took some spectra for H-alpha detail in high resolution of the following stars: 18 … Read more
During periods of clear sky, between the clouds, spectrum could be recorded from: PZ Gem, HD 205060, 59 Cyg.