万圣节与鬼头星云
A white nebula appears in a colorful star field. To some, the nebula appears like a ghost. Please see the explanation for more detailed information.
一片白色星云出现在色彩斑斓的星空之中。对某些人来说，这片星云就像幽灵一样。有关更多详细信息，请参阅说明。
鬼头星云
天文·每日一图
万圣节与鬼头星云
2021年10月24日 Halloween and the Ghost Head Nebula Image Credit: Mohammad Heydari-Malayeri (Observatoire de Paris) et al., ESA, NASA Explanation: Halloween’s origin is ancient and astronomical. Since the fifth century BC, Halloween has been celebrated as a cross-quarter day, a day halfway between