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NGC 7822.
NGC 7822是一个位于仙王座的年轻恒星形成复合区域。这个复合区域环绕被称为 Sharpless 171 的辐射发射线区域和年轻的星团 Berkeley 59。该附河区域距离地球约800到1000秒差距[1][2],并且它内部的恒星年龄不超过数百万年[1][2]。这个复合体内包含了距离太阳约1000秒差距的联星BD+66 1673,该食双星系统的其中一颗恒星是表面温度高达45000 K,光度大约是太阳10万倍的光谱 O5V 恒星,是表面温度最高的恒星之一[1]。该恒星是照亮该星云的其中一个光源,并且形塑了该复合体著名的类似创生之柱的结构-象鼻管[1][3][4]。
参考资料
- ^ 1.0 1.1 1.2 1.3 Majaess D., Turner D., Lane D., Moncrieff K. (2008).
The Exciting Star of the Berkeley 59/Cepheus OB4 Complex and Other Chance Variable Star Discoveries (页面存档备份,存于互联网档案馆), JAAVSO, vol. 36, no. 1, p. 90
- ^ 2.0 2.1 Pandey et al.(2008).Stellar contents and star formation in the young star cluster Be 59 (页面存档备份,存于互联网档案馆), MNRAS, Volume 383, Issue 3, pp. 1241-1258
- ^ Gahm G. F., Carlqvist P., Johansson L. E. B., Nikolić S. (2008).
Rotating elephant trunks (页面存档备份,存于互联网档案馆), Astronomy and Astrophysics, Volume 454, Issue 1, July IV 2006, pp.201-212
- ^ Fernandez, Antonio (2008).
Sharpless 171 (页面存档备份,存于互联网档案馆), APOD, October 18, 2008
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