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 154344


目录

图像

上传图像

DSS Images   Other Images


相关文章

Photometric analysis of the eclipsing binary star AI Draconis
New photometric data from the eclipsing binary star AI Draconis has beenanalyzed with the method of Wilson-Devinney. The system shows a periodincrease of about 0.91 sec per century, which corresponds to a masstransfer from the less to the more massive component at a rate of 7.510-7 Msun/yr under the conservative mass transferhypothesis. We also suggest that the system has an unseen componentwhich orbits around the mass center of the triplet system with a periodof about 23 yrs. We found that the projectional angular separationbetween the third star and eclipsing pair varies from 0.048 arcsec to0.235 arcsec. These results suggestive of a third body should be checkedin the future with more sensitive observations. Table 1 is onlyavailable electronically with the On-Line publication athttp://link.springer.de/link/service/00230/

Stellar spectrophotometric standards. II
Not Available

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:天龍座
右阿森松:17h02m08.26s
赤纬:+51°56'32.4"
视星:7.846
距离:162.602 天文距离
右阿森松适当运动:-8
赤纬适当运动:-53.8
B-T magnitude:8.109
V-T magnitude:7.868

目录:
适当名称   (Edit)
HD 1989HD 154344
TYCHO-2 2000TYC 3507-1512-1
USNO-A2.0USNO-A2 1350-09061297
HIPHIP 83354

→ 要求更多目录从vizier