Happy Cinco de Mayo! What’s the connection between backyard astronomy and this popular May 5 Mexican-American holiday? That’s simple. We’re going to the southerly part of the constellation Virgo to explore the Sombrero Galaxy (M104), one of the finest examples of an edge-on galaxy bisected by a dark dust lane. The nickname arises from its resemblance to the traditional Mexican headgear, the bright nuclear bulge forming the crown of the hat and the dust lane the wide brim.
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