今日星空：8月25日，星期二：Messier 73

本文介绍了8月24日土卫八达到东大距的天文现象。同时简述了Charles Messier编制的非彗星天体列表，涵盖了星团、星云和星系等天体类型。

Looking for a sky event this week? Check out our full Sky This Week column.  August 24: Iapetus at eastern elongation Charles Messier’s famous list of non-cometary objects largely contains star clusters, nebulae, and galaxies — faint fuzzies it could be easy to confuse for a cometary nucleus in a telescope of the type the comet-hunter was Continue reading "The Sky Today on Tuesday, August 25: Messier 73" The post The Sky Today on Tuesday, August 25: Messier 73 appeared first on Astronomy Magazine .