NGC 1893和IC 410的蝌蚪
(原标题: NGC 1893 and the Tadpoles of IC 410)
2024-02-02
浏览次数: 19
在晴朗的荷兰天空下，用望远镜和窄带滤光片捕捉到的这张宇宙影像显示了原本暗淡的发射星云IC 410。在照片中央的上方和右侧，你可以看到星际气体和尘埃池塘中两个引人注目的居民，它们被称为IC 410的蝌蚪。部分被前景尘埃遮蔽，星云本身围绕着NGC 1893，一个年轻的星系团。这些炽热明亮的星团形成于400万年前的星际云中，为发光的气体提供了能量。这些小蝌蚪是由密度更大、温度更低的气体和尘埃组成的球状体，长约10光年，很可能是正在形成恒星的地方。在恒星风和辐射的雕刻下，它们的头部被明亮的电离气体脊勾勒出来，而它们的尾巴则远离星团中心的年轻恒星。IC 410和内嵌的NGC 1893位于大约1万光年外，朝向星云丰富的御夫座。
查看原文解释
This cosmic view shows off an otherwise faint emission nebula IC 410, captured under clear Netherlands skies with telescope and narrowband filters. Above and right of center you can spot two remarkable inhabitants of the interstellar pond of gas and dust, known as the tadpoles of IC 410. Partly obscured by foreground dust, the nebula itself surrounds NGC 1893, a young galactic cluster of stars. Formed in the interstellar cloud a mere 4 million years ago, the intensely hot, bright cluster stars energize the glowing gas. Globules composed of denser cooler gas and dust, the tadpoles are around 10 light-years long and are likely sites of ongoing star formation. Sculpted by stellar winds and radiation their heads are outlined by bright ridges of ionized gas while their tails trail away from the cluster's central young stars. IC 410 and embedded NGC 1893 lie some 10,000 light-years away, toward the nebula-rich constellation Auriga.
© Sander de Jong