今日星空：8月18日，星期二：恒星与烟火

本文介绍了8月18日的天文观测建议，重点推荐了位于仙王座的深空天体。文中还提供了关于避开月光干扰的观测时间指南。

Looking for a sky event this week? Check out our full Sky This Week column.  August 17: Mars at Gemini’s feet Wait until after about 10 P.M. tonight to begin your deep-sky observing and the Moon won’t be a bother. An excellent target is NGC 6939, an open cluster in Cepheus the King. This cluster is quite Continue reading "The Sky Today on Tuesday, August 18: Stars and sparklers" The post The Sky Today on Tuesday, August 18: Stars and sparklers appeared first on Astronomy Magazine .