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Sh2-54

Sh2-54
观测资料：历元 J2000
类型发射
赤经18h 17m 53s[1]
赤纬−11° 40′ 58″[1]
距离6,200 光年[2]
视星等（V）-
视大小（V）140 分[3]
星座巨蛇座
物理性质
其他名称RCW 167, Gum 84/85, W35, LBN 72[1]
参见：弥漫星云、星云列表

Sh2-54是在巨蛇座的一个扩张中的亮星云 [1]。

在它的核心有许多原恒星和红外线源；有些射源，像是IRAS18151-1208，非常有可能是非常年轻的大质量恒星[4]。在这个区域内较老恒星族群的平均年龄大约是400-500万岁，并且聚集成为疏散星团NGC 6604 [2]。

Sh2-54属于扩张中的星云，包括鹰星云和奥米茄星云都属于此类型[5]。在这个区域的高质量年氢恒星构成OB星协巨蛇座OB1和巨蛇座OB2[2]。

相关条目

参考资料

  1. ^ 1.0 1.1 1.2 1.3 SIMBAD Astronomical Database. Results for Sh2-54. [2011-06-05]. （原始内容存档于2019-05-01）. 
  2. ^ 2.0 2.1 2.2 Reipurth, B. The Young Cluster NGC 6604 and the Serpens OB2 Association. Handbook of Star Forming Regions, Volume II: the Southern Sky. December 2008, 5: 590. Bibcode:2008hsf2.book..590R. 
  3. ^ Sharpless, Stewart. A Catalogue of H II Regions.. Astrophysical Journal Supplement. December 1959, 4: 257. Bibcode:1959ApJS....4..257S. doi:10.1086/190049. 
  4. ^ Davis, C. J.; Varricatt, W. P.; Todd, S. P.; Ramsay Howat, S. K. Collimated molecular jets from high-mass young stars: IRAS 18151-1208. Astronomy and Astrophysics. October 2004, 425 (3): 981–995. Bibcode:2004A&A...425..981D. doi:10.1051/0004-6361:20041298. 
  5. ^ Sofue, Y.; Handa, T.; Fuerst, E.; Reich, W.; Reich, P. Giant stellar-wind shell associated with the H II region M16. Astronomical Society of Japan. 1986, 38: 347–360. Bibcode:1986PASJ...38..347S. 

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参见: 古姆星云


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Sh2-54
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