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 193225


目录

图像

上传图像

DSS Images   Other Images


相关文章

A False Planet around HD 192263
We present new high-precision Strömgren photometry and Ca II H andK spectrophotometry of HD 192263. Based on radial velocity variationsdetected previously by two groups, this K2 V star was thought to host a0.75 MJup (minimum mass) planetary companion in a 24 dayorbit. Our photometric observations reveal periodic variations thatmatch the purported planetary orbital period, while the Ca II H and Kemission fluxes are modulated on half the planetary period. Thissuggests that rotational modulation of the visibility of stellar surfaceactivity is the source of the observed radial velocity variations.Therefore, HD 192263 should be removed from lists of stars withwell-established planetary companions unless further observations andanalysis can support the existence of the planet in spite of the star'sintrinsic variations.

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:天鷹座
右阿森松:20h19m00.70s
赤纬:+02°14'00.3"
视星:7.343
距离:89.767 天文距离
右阿森松适当运动:17.8
赤纬适当运动:-2.3
B-T magnitude:7.704
V-T magnitude:7.373

目录:
适当名称   (Edit)
HD 1989HD 193225
TYCHO-2 2000TYC 500-1357-1
USNO-A2.0USNO-A2 0900-18231022
HIPHIP 100159

→ 要求更多目录从vizier