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Details:
Time: 19:56UT 2021-01-03 Exp.9 x 3 min
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.
AT2020adhh, TNS discovered 2020/12/17.312 by Catalina Real-Time Transient Survey and Mirco Villi
Found in UGC 3142 at R.A. = 04h43m46s.152, Decl. = +28°58'10".56
Mag 21.0:12/17, Type SN II (zhost=0.021660)
Reference: David Bishop http://www.rochesterastronomy.org/snimages/
Discovery page (References: TNS):
https://wis-tns.weizmann.ac.il/object/2020adhh
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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