Image: Astronomy Picture of the Day: Gamma Cassiopeiae and Friends
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Gamma Cassiopeiae and Friends
Astronomy Picture of the Day - 2009 December 24
Credit & Copyright: Processing - Noel Carboni, Imaging - Greg Parker, New Forest Observatory
Explanation: Gamma Cassiopeiae shines high in northern autumn evening skies. The brightest spiky star in this rich and colorful Milky Way starfield, bluish Gamma Cas marks the central peak in the W-shaped constellation Cassiopeia. A hot, variable, and rapidly rotating star about 600 light-years distant, Gamma Cas also ionizes surrounding interstellar material, including the wispy IC 63 (left) and IC 59 emission and reflection nebulae. The two faint nebulae are physically close to Gamma Cas, separated from the star by only a few light-years. This well-composed, wide-field view of the region spans almost 2 degrees on the sky.
11 years ago.