行星状星云NGC 2818位于Pyxis南部星座(指南针)。当一颗恒星在核f耗尽后将其外层脱落到太空中时,产生了发光层和气体壳(Planetary nebula NGC 2818 in the southern constellation of Pyxis (The Compass). Glowing layers and shell of gas were created when a star shed its outer layers into space after running out of nuclear f)国家航空航天局国家航空航天局 |
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