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Details:
Time: 20:23UT 2021-02-26 Exp.25 x 1 min
Tel: C14 @ f/8.2 AP7 CCD 1.78"/pix Paramount GT-1100S
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.
2021ass (= ZTF21aafepon) (= Gaia21asc), TNS discovered 2021/01/18.145 by Zwicky
Transient Facility (ZTF) Found in NGC 684 at R.A. = 01h50m10s.128, Decl. = +27°38'42".79
Located 51".8 west and 1".5 south of the center of NGC 684 Mag 16.7:2/11, Type II (zhost=0.011791) (References: ZTF
observations, Gaia observations)
Reference: David Bishop http://www.rochesterastronomy.org/snimages/
Discovery page (References: TNS):
https://wis-tns.weizmann.ac.il/object/2021ass
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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