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C/2021 T4 (Lemmon)
https://forum.vdsastro.de/viewtopic.php?t=7234		 Seite 1 von 1
Autor:  Mike Olason [ 04. August 2023, 02:48:06 AM ]
Betreff des Beitrags:  C/2021 T4 (Lemmon)
This was not what I expected to see when I imaged C/2021 T4 (Lemmon) which was reported to be approximately magnitude 8. Maybe the fact that it was only 11 degrees above the light pollution of Tucson under hazy desert skies illuminated by a nearly full Moon made for poor images, but I was not expecting Astrometrica to generate a magnitude of V=11.8 in an aperture diameter of 2.3' which appeared to amply cover the coma. An aperture diameter of 5' generated a magnitude of V=10.9.

Dateianhänge:
2021T4_20230803_0449_molason.jpg
2021T4_20230803_0449_molason.jpg [ 163.18 KiB | 944 mal betrachtet ]
Autor:  Mike Olason [ 11. August 2023, 09:44:27 AM ]
Betreff des Beitrags:  Re: C/2021 T4 (Lemmon)
Managed to grab these images of C/2021 T4 just before a thunderhead soaked me as I pulled the plug and covered the equipment, Summer in the desert. The images were collected using an 11" SCT vs a 66mm refractor last week but still did not show a very impressive comet, G=12.0, with no Moon in the sky this week, although the images were collected above the horizon over a very light polluted Tucson.

Dateianhänge:
2021T4_20230810_0413_molason.gif
2021T4_20230810_0413_molason.gif [ 2.32 MiB | 687 mal betrachtet ]
2021T4_20230810_0412_molason.jpg
2021T4_20230810_0412_molason.jpg [ 216.82 KiB | 687 mal betrachtet ]
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