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Cassiopeia A:
Chandra Maps Vital Elements in Supernovas

Chandra Cas A X-ray Image
JPEG (181 k) , Tiff (2.9 MB), PS (3.4 MB)
Chandra X-ray image of the supernovas remnant Cassiopeia A (Cas A). The red, green, and blue regions in this Chandra X-ray image of the supernovas remnant Cassiopeia A show where the intensity of low, medium, and high-energy X-rays, respectively, is greatest. The red material on the left outer edge is enriched in iron, whereas the bright greenish white region on the lower left is enriched in silicon and sulfur. In the blue region on the right edge, low and medium energy X-rays have been filtered out by a cloud of dust and gas in the remnant.

Fast Facts for Cassiopeia A:
Credit NASA/CXC/SAO/Rutgers/J.Hughes
Scale  Image is 8.5 arcmin on a side.
Category  Supernovas & Supernova Remnants
Coordinates (J2000)  RA 23h 23m 25.80s | Dec +58º 48' 53.40"
Constellation  Cassiopeia
Observation Date  August 19, 1999
Observation Time  1.7 hours
Obs. ID  214
Color Code  Intensity: Blue=high-energy; Green=medium energy; Red=low energy
Instrument  ACIS
Distance Estimate  About 10,000 light years
Release Date  December 21, 1999

More Information on Cassiopeia A:
Press Room: Cassiopeia A Press Release
More Images of Cassiopeia A (Vital Elements)
Press Room: Cas A Fact Sheet (08/99)
Cassiopeia A Handout: html | pdf
Powerpoint and PDF
Chandra's Fifth: The Many Faces of Cassiopeia A
Related Chandra Images:
Photo Album: Cassiopeia A (23 Aug 04)
Photo Album: Cassiopeia A (12 Aug 02)
Photo Album: Cassiopeia A (27 Jun 00)
Photo Album: Cassiopeia A (26 Aug 99)
More Information on Supernovas & Supernova Remnants:
X-ray Astronomy Field Guide: Supernovas and Supernova Remnants
Multimedia: Supernova Explosion
Related Activities: Supernova Word Search (java enhanced)
Questions and Answers: Supernovas & Supernova Remnants
Chandra Images: Supernovas & Supernova Remnants

Chandra Images: '08 | ' 07 | ' 06 | ' 05 | ' 04 | ' 03 | ' 02 | ' 01 | ' 00 | ' 99 | Images by Category

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