首页     To Survive in the Universe    
Services
    Why to Inhabit     Top Contributors     天文图片     收集     论坛     Blog New!     常见问题     登录  
→ Adopt this star  

HD 19801


目录

图像

上传图像

DSS Images   Other Images


相关文章

Hydrogen profiles, helium line strengths, and surface gravities of eclipsing binary stars
Coude spectroscopy and four-color photometry are used to show thatsurface gravities of eclipsing binary stars determined from hydrogenline profiles and from theoretical profile grids are in agreement withgravities based on binary light and radial velocity solutions. Agreementis obtained with both the Griem and the Vidal-Cooper-Smithline-broadening theories. Agreement is also found for gravitiesdetermined from neutral helium line strengths for N(He)/N(H) equals 0.1.

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:時鐘座
右阿森松:03h08m08.28s
赤纬:-61°08'59.5"
视星:7.173
距离:377.358 天文距离
右阿森松适当运动:24.8
赤纬适当运动:24.6
B-T magnitude:8.921
V-T magnitude:7.318

目录:
适当名称
HD 1989HD 19801
TYCHO-2 2000TYC 8860-868-1
USNO-A2.0USNO-A2 0225-00785304
HIPHIP 14571

→ 要求更多目录从vizier