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 12440


目录

图像

上传图像

DSS Images   Other Images


相关文章

Positional reference stars in the Magellanic Clouds
The equatorial coordinates are determined of 926 stars (mainly ofgalactic origin) in the direction of the Magellanic Clouds at the meanepoch T = 1978.4 with an overall accuracy characterized by the meanvalues of the O-C coordinates, Sa = 0.35 arcsec and Sd = 0.38 arcsec,calculated from the coordinates of the Perth reference stars. Thesevalues are larger than the accuracy expected for primary standard stars.They allow the new positions to be considered as those of reliablesecondary standard stars. The published positions correspond to anunquestionable improvement of the quality of the coordinates provided inthe current catalogs. This study represents an 'astrometric step' in thestarting of a 'Durchmusterung' of the Magellanic Clouds organized by deBoer (1988, 1989).

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:水蛇座
右阿森松:01h58m01.55s
赤纬:-74°06'26.9"
视星:8.206
距离:561.798 天文距离
右阿森松适当运动:18.3
赤纬适当运动:20.4
B-T magnitude:9.897
V-T magnitude:8.346

目录:
适当名称   (Edit)
HD 1989HD 12440
TYCHO-2 2000TYC 9149-1581-1
USNO-A2.0USNO-A2 0150-01201245
HIPHIP 9167

→ 要求更多目录从vizier