A stunning deep-space image showcasing the open star clusters M46 (upper left) and M47 (lower right) in the Puppis constellation. M46, approximately 5,400 light-years away, is older and contains hundreds of stars, while the younger M47, at 1,600 light-years, is smaller and looser. Interestingly, the planetary nebula NGC 2438, a foreground object, is superimposed on M46, illustrating the vast distances and coincidental alignments in space.
Astronomy Picture from 10/09/2006
Star Clusters Young and Old
Source: https://apod.nasa.gov/apod/ap060910.html
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