sagalliant 发表于 2009-12-24 13:13

APOD 20091224 仙后座Gamma附近

来源：APOD

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.
1http://antwrp.gsfc.nasa.gov/apod/image/0912/GammaCass_GregNoel_APOD.jpg

南宁-星友 发表于 2009-12-24 13:24

::070821_21.jpg::

陈宇文 发表于 2009-12-24 14:28

好图啊~繁星点点，做桌面用啦
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