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Cas A SNR, John Bozeman

Cas A SNR

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Cas A SNR, John Bozeman

Cas A SNR

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Description

Cassiopeia A (Cas A) is a supernova remnant (SNR) in the constellation Cassiopeia and the brightest extrasolar radio source in the sky at frequencies above 1 GHz. The supernova occurred approximately 11,000 light-years (3.4 kpc) away within the Milky Way; given the width of the Orion Arm, it lies in the next-nearest arm outwards, the Perseus Arm, about 30 degrees from the Galactic anticenter. The expanding cloud of material left over from the supernova now appears approximately 10 light-years (3 pc) across from Earth's perspective.

Color Mapped:

Red - 4.6 micron IR
Green - 12micron IR
Blue - 22 micron IR

 Processed with FITS Liberator, PixInsight and Photoshop 2023.

This publication makes use of data products from the Wide-field Infrared Survey Explorer, which is a joint project of the University of California, Los Angeles, and the Jet Propulsion Laboratory/California Institute of Technology, funded by the National Aeronautics and Space Administration.

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Cas A SNR, John Bozeman