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 74599


目录

图像

上传图像

DSS Images   Other Images


相关文章

Einstein Observatory magnitude-limited X-ray survey of late-type giant and supergiant stars
Results are presented of an extensive X-ray survey of 380 giant andsupergiant stars of spectral types from F to M, carried out with theEinstein Observatory. It was found that the observed F giants orsubgiants (slightly evolved stars with a mass M less than about 2 solarmasses) are X-ray emitters at the same level of main-sequence stars ofsimilar spectral type. The G giants show a range of emissions more than3 orders of magnitude wide; some single G giants exist with X-rayluminosities comparable to RS CVn systems, while some nearby large Ggiants have upper limits on the X-ray emission below typical solarvalues. The K giants have an observed X-ray emission level significantlylower than F and F giants. None of the 29 M giants were detected, exceptfor one spectroscopic binary.

Photoelectric photometry of late type stars in the direction opposed to galactic rotation
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1974A&AS...16..269G&db_key=AST

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:船帆座
右阿森松:08h43m06.88s
赤纬:-45°33'42.3"
视星:6.841
距离:478.469 天文距离
右阿森松适当运动:-8.8
赤纬适当运动:6.8
B-T magnitude:8.818
V-T magnitude:7.005

目录:
适当名称   (Edit)
HD 1989HD 74599
TYCHO-2 2000TYC 8151-1323-1
USNO-A2.0USNO-A2 0375-06415885
HIPHIP 42788

→ 要求更多目录从vizier