Cassiopeia A

Cassiopeia A is a supernova remnant located 11,000 light years away in the constellation of Cassiopeia. It was discovered in 1947 by Martin Ryle and Francis Graham-Smith.

References

  1. ↑ Fesen, Robert A.; Hammell, Molly C.; Morse, Jon; Chevalier, Roger A.; Borkowski, Kazimierz J.; Dopita, Michael A.; Gerardy, Christopher L.; Lawrence, Stephen S.; Raymond, John C.; van den Bergh, Sidney (July 2006). "The expansion asymmetry and age of the Cassiopeia A supernova remnant". The Astrophysical Journal. 645 (1): 283–292. arXiv:astro-ph/0603371. Bibcode:2006ApJ...645..283F. doi:10.1086/504254. S2CID 8999768.
  2. ↑ Stover, Dawn (2006). "Life in a bubble". Popular Science. Vol. 269, no. 6. p. 16.