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NGC 2477

NGC 2477
在船尾座的疏散星团NGC 2477。
观测数据 (2000 历元)
星座船尾座
赤经07h 52m 09.8s[1]
赤纬-38° 32′ 00″[1]
距离~ 3600 ly[2] (~ 1100 pc[2])
视星等 (V)5.8[1]
视直径 (V)27′[1]
物理性质
其他名称(标示)科德韦尔 71
相关条目:疏散星团疏散星团列表

NGC 2477是在星座船尾座的一个疏散星团天球座标为赤经7时52.3分,赤纬-38度33分,亮度约5.8视星等,距地球3,600光年。大约包含300颗恒星[3],于1751年由拉卡伊发现[3]。这个星团的年龄约7亿年[3]

视觉外观

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NGC 2477是一个令人惊艳的星团,在天空中的范围约27角分,几乎与满月一样大,是天空中最大的疏散星团之一[1]。它像是一个高解析下的球状星团,但是没有球状星团的中心密集特征。伯纳姆注意到一些观测者评论说,它虽然比M46小,更恒星数量更多,也更紧凑[2]

距离

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伯纳姆列举了几个可能的距离,范围从700秒差距(2,300光年) 到 1,900秒差距(6,200光年)[2]

注解

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  1. ^ 1.0 1.1 1.2 1.3 1.4 NGC/IC Project Public Database. Results for NGC 2477. [2010-12-13]. (原始内容存档于2012-05-20). 
  2. ^ 2.0 2.1 2.2 2.3 Robert Burnham, Jr. Burnham's Celestial Handbook III. New York: Dover. 1978: 1516. ISBN 978-0-486-24065-7. 
  3. ^ 3.0 3.1 3.2 NGC 2477. SEDS Messier Objects Database. [2010-12-13]. (原始内容存档于2017-07-26). 

外部链接

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NGC 2477
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