Object Name:

Cassiopeia A

Object Description:

Supernova Remnant

Position (J2000):

R.A. 23h 23m 24s
Dec. +58° 48' 54"

Constellation:

Cassiopeia

Distance:

About 3,400 parsecs (11,000 light-years)

Dimensions:

The bright remnant shell has a diameter of about 4 parsecs (13 light-years).

Instrument:

WFPC2

Exposure Dates:

January 2000, January 2002

Exposure Time:

14 hours

Filters:

F850LP, F675W (R), F450W (B)

Principal Astronomers:

R. Fesen (Dartmouth), J. Morse (Univ. of Colorado), R. Chevalier (Univ. of Virginia), K. Borkowski (North Carolina State Univ.), C. Gerardy (Dartmouth), S. Lawrence (Hofstra Univ.), S. van den Bergh (Dominion Astrophys. Obs.)

Hubble Heritage Team: K. Noll, H. Bond, C. Christian, L. Frattare, F. Hamilton, J. Lee, Z. Levay, P. Royle (STScI)

Image Credit:

NASA and The Hubble Heritage Team (STScI/AURA)

Release Date:

July 3, 2002

Orientation/Scale: