The Messier Catalog is
A) a listing of all the stars within the Local Bubble
B) a list of all the HII regions visible without a telescope
C) a list of nebulae, star clusters, and galaxies that might be mistaken for a comet far from the Sun
D) a list of regions where dark clouds with large numbers of molecules can be found
E) the catalog that some graduate students accidentally dropped in the mud
Correct Answer:
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