恒星珠宝盒：疏散星团NGC 290
2019 October 13 A Stellar Jewel Box: Open Cluster NGC 290 Image Credit: NASA, ESA, Hubble; Acknowledgement: E. Olzewski (U. A…
NGC 290
2019 October 13 A Stellar Jewel Box: Open Cluster NGC 290 Image Credit: NASA, ESA, Hubble; Acknowledgement: E. Olzewski (U. A…