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NGC 3766

NGC 3766
DSS2拍摄的NGC 3766,视野0.3°
Credit: 英澳天文台/STScI/WikiSky
观测数据 (J2000.0 历元)
星座半人马座
赤经11h 36.1m
赤纬−61° 37′
距离5,500光年 ()
视星等 (V)5.3
视直径 (V)12.0′
物理性质
特征使用双筒望远镜望远镜很容易看见,并且
如同珍珠般的闪闪发光和闪烁著。
其他名称(标示)NGC 3766、珍珠星团、Lacaille III.7,
Dunlop 289、Melotte 107、 Collinder 248)
相关条目:疏散星团疏散星团列表
NGC 3766在天球上的位置

NGC 3766珍珠星团,是在半人马座的一个疏散星团,在南半球都能看得见。该星团位于巨大的恒星形成区域船底座分子云内。它是尼可拉·路易·拉卡伊于1751-52年间发现的[1]。NGC 3766距离地球约1745 pc[2],天球上角直径约为12 角分[3]

状态

NGC 3766中有137颗有编号的恒星,但可能很多实际上不是星团的成员星,并且只有36颗有精确的测光观测资料[4]。NGC 3766的总体视星等为5.3,总体光谱型则是B1.7[2]。NGC 3766是相对年轻的星团,年龄约1440万年[3],并以 –14.8 km/s 的速度靠近地球[2]。该星团内发现了11颗Be星,2颗红巨星与4颗Ap星 [4]

相关条目

参考资料

  1. ^ The Pearl Cluster. [2011-01-28]. (原始内容存档于2011-07-15). 
  2. ^ 2.0 2.1 2.2 SIMBAD Astronomical Dangc3766webdatabase. Results for NGC 3766. [2013-06-13]. (原始内容存档于2019-05-01). 
  3. ^ 3.0 3.1 WEBDA Astronomical Database. WEBDA Page for NGC 3766. [2013-06-13]. (原始内容存档于2016-03-04). 
  4. ^ 4.0 4.1 Webda Astronomical Database. WEBDA Page for NGC 3766a. [2013-06-13]. (原始内容存档于2012-03-22). 

外部链接


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NGC 3766
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