July 13, 2016
Another birthday means another year in which the universe got to experience itself through your particular combination of wonder and will.
M7: Open Star Cluster in Scorpius
Birthday · July 13, 2016
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APOD published July 13, 2016. Credit: Roberto Colombari. A publication-date match, not a photo taken on your date. Independent of NASA.
M7 is one of the most prominent open clusters of stars on the sky. The cluster, dominated by bright blue stars, can be seen with the naked eye in a dark sky in the tail of the constellation of the Scorpion (Scorpius). M7 contains about 100 stars in total, is about 200 million years old, spans 25 light-years across, and lies about 1000 light-years away. The featured wide-angle image was taken near the city of Belo Horizonte in Brazil. The M7 star cluster has been known since ancient times, being noted by Ptolemy in the year 130 AD. Also visible are a dark dust cloud on the lower right, and, in the background, literally millions of unrelated stars towards the Galactic center.
Image credit: Roberto Colombari