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C/2021 A1 Leonard

Object : Comet, C/2021 A1 Leonard
Coordinates/Direction : -
Object size : -
Object magnitude : -
More to know : You can read more about the comet on Seiichi Yoshida's homepage: comet/ catalog/ 2021A1/ 2021A1.html

2021-12-07, Leonard

Comet C/2021 A1 Leonard
Date : 2021-12-07
Time (UT) : 00:47 to 03:18
Mount : Skywatcher HEQ5, HEQ5 mount project
Guide system: Astroberry, PHD2 in dithering mode, Guide telescope 200 mm f/3.5, camera QHY5
Lens/telescope : Pentax 645 300 mm ED f/4.0, Pentax 645 300 mm
Field (FOV) : 6.8x4.5 degree, before cropping
Filter : none
Camera : Canon EOS 6D
Control system : Astroberry, with GPS
Exp. time : 181*30 seconds at ISO800
Image process tool : AstroImageJ, Fitswork
Processing : Flat calibrated, bias subtracted, cropped about 70%.
Site : Sweden, Stockholm, Hagsätra. Bortle class 9
Comment : This was the first astrophoto of this season. I didn't even had time to polar align or focus correct. Comet Leonard can be as bright as magnitude 4, when I took this photo the magnitude was maybe 5.5. I can very sad about where I live, Bortle class 9 ! We have just come home from Fuerteventura, Bortle class 3.
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