SGR 1806-20

SGR 1806-20 is a pulsar in the constellation Sagittarius. It is located 50,000 light years away from the Sun and Earth in the star cluster 1806-20, with the star LBV 1806-20. On December 27, 2004, radiation from a gamma-ray burst caused by the star became the brightest event from outside the Solar System.[1][2][3]

Artist's painting of SGR 1806-20.

References
  1. "NASA - Cosmic Explosion Among the Brightest in Recorded History".
  2. "NASA - Cosmic Explosion Among the Brightest in Recorded History".
  3. Plait, Phil (27 December 2012). "Eight Years Ago Today, Earth Was Slammed by a Huge Cosmic Blast". Slate.
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