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Details:
Time: 22:52UT 2021-01-31 Exp.6 x 122sec
Telescope 0.254m f/6.34 with ST-10XME CCD Binning 2x2 1.51"/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.
AT2021bjy (= ATLAS21dgz) discovered 2021/01/30.481 at R.A. =
08h49m33s.429, Decl. = +50°52'03".49 Mag 16.9:1/30, Type SN Ia
(zhost=0.02749)(host CGCG 264-017)(References: TNS)
Reference: David Bishop http://www.rochesterastronomy.org/snimages/
Discovery page (References: TNS):
https://wis-tns.weizmann.ac.il/object/2021bjy
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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