梅西耶24：人马恒星云

2022年4月7日

Messier 24: Sagittarius Star Cloud
Image Credit & Copyright: Gabriel Rodrigues Santos

Explanation: Unlike most entries in Charles Messier’s famous catalog of deep sky objects, M24 is not a bright galaxy, star cluster, or nebula. It’s a gap in nearby, obscuring interstellar dust clouds that allows a view of the distant stars in the Sagittarius spiral arm of our Milky Way galaxy. When you gaze at the star cloud with binoculars or small telescope you are looking through a window over 300 light-years wide at stars some 10,000 light-years or more from Earth. Sometimes called the Small Sagittarius Star Cloud, M24’s luminous stars fill this gorgeous starscape. Covering over 3 degrees or the width of 6 full moons in the constellation Sagittarius, the telescopic field of view includes dark markings B92 and B93 just above center, along with other clouds of dust and glowing nebulae toward the center of the Milky Way.

Tomorrow’s picture: pixels in space

梅西耶24：人马恒星云
影像提供与版权: Gabriel Rodrigues Santos

说明: 有别于梅西耶著名星表里的其他深空天体，M24并不是明亮的星系、星团或星云。它位在邻近不透光星际尘埃云的裂缝里，因此让我们得以窥见在我们银河系人马旋臂上的遥远恒星。当你用双筒或小望远镜观赏这团恒星云时，你的视线穿过一扇宽超过300光年的视窗，凝视大片距离地球约10,000光年或更远的恒星。这团有时亦名为人马小恒星云的M24内之亮星，占满这片壮丽的星野。这幅涵盖人马座超过3度（6个满月）宽的望远镜影像，也记录了位在影像中上方的暗星云B92及B93，以及其他位在银河中心方向的尘埃云和明亮星云。

明日的图片: pixels in space