For more than two centuries, amateur astronomers have earned their stripes by observing the 109 star clusters, nebulae, and galaxies cataloged by French comet hunter...
If there were a canon for viewing the night sky, Charles Messier would be its author. The galaxies, star clusters, and nebulae cataloged by the...
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For more than two centuries, amateur astronomers have earned their stripes by observing the 109 star clusters, nebulae, and galaxies cataloged by French comet hunter...
