人马三重星云
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标签： trifid
人马三重星云
2021年04月26日 A Sagittarius Triplet Image Credit & Copyright: Gabriel Rodrigues Santos Explanation: These three bright nebulae are often featured on telescopic tours of the constellation Sagittarius and the crowded starfields of the central Milky Way. In fact, 18th century cosmic tourist Charles Messier cataloged two of them; M8, the large nebula below an...