蝘蜓I分子云

2022年2月17日

Chamaeleon I Molecular Cloud
Image Credit & Copyright: Acquisition: Stas Volskiy (Chilescope.com), Processing: Robert Eder

Explanation: Dark markings and bright nebulae in this telescopic southern sky view are telltale signs of young stars and active star formation. They lie a mere 650 light-years away, at the boundary of the local bubble and the Chamaeleon molecular cloud complex. Regions with young stars identified as dusty reflection nebulae from the 1946 Cederblad catalog include the C-shaped Ced 110 just above and left of center, and bluish Ced 111 below it. Also a standout in the frame, the orange tinted V-shape of the Chamaeleon Infrared Nebula (Cha IRN) was carved by material streaming from a newly formed low-mass star. The well-composed image spans 1.5 degrees. That’s about 17 light-years at the estimated distance of the nearby Chamaeleon I molecular cloud.

Tomorrow’s picture: East of Sirius

蝘蜓I分子云
影像提供与版权: Acquisition: Stas Volskiy (Chilescope.com), 影像处理: Robert Eder

说明: 这幅南天望远镜影像里的暗星云和亮星云，是该处有年轻恒星和活跃 恒星形成活动的迹证。它们座落于本地泡和蝘蜓分子云复合体的交界处，离我们只有650光年远。年轻恒星则落在尘埃反射星云所在之处，根据1946年编录的塞德布拉德星表（Cederblad catalog），它们分别为影像中左上方的C形Ced 110，以及它下方的泛蓝Ced 111。在影像里很醒目的，还有由甫形成的小质量恒星之外泛物质流，所雕出的橙色V型蝘蜓红外星云（Cha IRN）。这张构图很出色的影像，涵盖了1.5度的天区；以蝘蜓I分子云所在距离来换算，影像呈现分子云内约17光年的区域。 （Chamaeleon I molecular cloud 蝘蜓I分子云）

明日的图片: East of Sirius