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Details:
Easy target in Coma Berenices Sun distance (au): 1,95 Comet perihelion 28. Jan 2021
Time: 23:53UT 2021-04-15 Exp. 12 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
Previous images chronological :
Lars Bäckström on April 11, 2021 @ Lidingö, Sweden
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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