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Details:
Sun distance (au): 3,63 Comet perihelion 30.July 2022 (Sun distance (au): 1,08)
Time: 16:51UT 2021-11-17 Exp.13 x 185sec
Tel: C14 @ f/7.88 AP7 CCD 1.77"/pix Paramount GT-1100S
Odd Trondal Obs.code 238 (Uranium). Oslo Norway.
Atom weight Neptunium Isotope 238.Half-life 2 days
Software used:TheSky6,CCDSoft 5, MSB Astroart 2.0,7.0, Paint
Photographer's website:
https://www.flickr.com/photos/odd_trondal/
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