玫瑰星云的中心

2023年2月6日

In the Heart of the Rosette Nebula
Image Credit & Copyright: Lyman Insley

Explanation: In the heart of the Rosette Nebula lies a bright cluster of stars that lights up the nebula. The stars of NGC 2244 formed from the surrounding gas only a few million years ago. The featured image taken in mid-January using multiple exposures and very specific colors of Sulfur (shaded red), Hydrogen (green), and Oxygen (blue), captures the central region in tremendous detail. A hot wind of particles streams away from the cluster stars and contributes to an already complex menagerie of gas and dust filaments while slowly evacuating the cluster center. The Rosette Nebula’s center measures about 50 light-years across, lies about 5,200 light-years away, and is visible with binoculars towards the constellation of the Unicorn (Monoceros).

Your Sky Surprise: What picture did APOD feature on your birthday? (post 1995)

Tomorrow’s picture: double dipper comet

玫瑰星云的中心
图像提供与版权: Lyman Insley

说明: 玫瑰星云中心的明亮疏散星团，点亮了整个星云。而NGC 2244的恒星，则是在数百万年前才刚从周围的云气中诞生出来。这幅摄于2014年1月的多重曝光图像，记录了硫（红色系）、氢（绿）及氧（蓝）发出的特征辉光，以呈现中心区的极精细结构。从星团成员星泛流而出的炽热粒子恒星风，除了把气体和尘埃丝搅得更加混乱之外，也缓慢的蒸发掉星团中心的物质。这片玫瑰星云中心景观的跨幅约有50光年，离我们则有5,200光年远，用双筒望远镜即可以在麒麟座方向看见它。

你的天空惊喜: APOD在你生日那天拍了什么照片？（1995年后）

明日的图片: double dipper comet