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Details:
Time: 05:17UT 2021-12-20 Exp.45 x 62sec
Telescope 0.254m f/4.9 ST-10XME CCD 1.13"/pix
Odd Trondal Obs.code 238 (Uranium). Oslo Norway.
Plutonium Isotope.Atom-weight 238.Half-life 87.7 years gives power to the Voyagers, New Horizon and other distant spacecrafts.
AT2021aghp (= ATLAS21bnif) discovered 2021/12/14.601 at R.A. =
11h30m23s.555, Decl. = +63°18'01".53 Mag 18.7:12/14, Type SN Ib
(References: TNS)
Reference David Bishop http://www.rochesterastronomy.org/snimages/
Discovery page (References: TNS):
https://www.wis-tns.org/object/2021aghp
Reference image from Aladin or Sloan Digital Sky Survey
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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