Astrophysics (Index)About

Cassiopeia A

(Cas A)
(supernova remnant visible for 300 years)

Cassiopeia A (or Cas A) is a supernova remnant about 11000 light-years away for a supernova that became visible to Earth in about 1680. It was first recorded in 1948 and has been much studied since. Reflections of it off gas clouds have recently provided some look at the actual event.


(supernova,event)
Further reading:
http://en.wikipedia.org/wiki/Cassiopeia_A
RedshiftParsecs
/Distance
Lightyears
/Lookback Years
  
~03kpc11.0klyCassiopeia A
Coordinates:Cassiopeia A
J232324+5848.9

Referenced by pages:
supernova remnant (SNR)

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