MR 22 (Roberts 22)

作者：Trolligi Gurren Lagann

发布日期：

Roberts 22, also known as MR 22 and AFGL 4104, is a protoplanetary nebula about 4,664 light-years away in the constellation Carina. Its central star is a post-AGB star that is once thought to be a Wolf-Rayet star

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