Sunday, March 25, 2012

APOD 3.8

Messier 9 Close-up
See Explanation.  Clicking on the picture will download
 the highest resolution version available.

     M9 is a globular cluster containing over 300,000 stars and has a diameter of roughly 90 light-years.  It is near the center of the Milky Way galaxy and is about 25,000 light-years away.  It is at least two years older than the Sun.

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