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JWST

Cassiopeia A

Also known as: Cas A, 3C 461

nebulaInfrared

Analysis

Young supernova remnant showing intricate structures formed in the 340 years since the stellar explosion.

The supernova that created Cas A exploded around 1680 CE but went unrecorded

Coordinates: RA: 23h 23m 24.00s, Dec: +58° 48' 43.2"; Constellation: Cassiopeia
Observation Date: November 10, 2023
Instrument: MIRI; Filters: F770W, F1130W, F1800W, F2100W
Distance: 11.0 thousand light years