首页     开始     To Survive in the Universe    
Inhabited Sky
    News@Sky     天文图片     收集     论坛     Blog New!     常见问题     新闻     登录  

HD 174919


目录

图像

上传图像

DSS Images   Other Images


相关文章

A photometric investigation of cluster membership for the Cepheid BB Sagittarii
Photoelectric UBV and VRI photometry is presented for the close pair ofopen clusters Cr 394 and NGC 6716 and for the 6.64 d classical CepheidBB Sgr. For Cr 394, E(B-V) = 0.25 + or - 0.01, V(0)-M(V) = 9.04 + or -0.08, d = 643 + or - 25 pc, age is about 60 million yr, nuclear radiusis 9 arcmin, and tidal radius is 27 arcmin. For NGC 6716, E(B-V) = 0.11+ or 0.01, V(0)-M(V) = 9.07 + or - 0.17, d = 650 + or - 52 pc, age isabout 60 million yr, nuclear radius 7 arcmin. The data combined withstar counts for the region of the cluster demonstrate that the Cepheidis a likely member of Cr 394.

提交文章


相关链接

  • - 没有找到链接 -
提交链接


下列团体成员


观测天体数据

星座:人馬座
右阿森松:18h53m48.61s
赤纬:-19°47'49.7"
视星:6.954
距离:512.821 天文距离
右阿森松适当运动:0.6
赤纬适当运动:-17.5
B-T magnitude:8.737
V-T magnitude:7.102

目录:
适当名称   (Edit)
HD 1989HD 174919
TYCHO-2 2000TYC 6289-2467-1
USNO-A2.0USNO-A2 0675-30470870
HIPHIP 92733

→ 要求更多目录从vizier