M45：阿特拉斯与普勒俄涅的女儿们
2019 November 7 Messier 45: The Daughters of Atlas and Pleione Image Credit & Copyright: Adam Block, Steward Observatory, University of Arizona Explanation: Hurtling through a cosmic dust cloud a mere 400 light-years away, the lovely Pleiades or Seven Sisters open star cluster is well-known for its striking blue reflection nebulae. It lies in the night ...