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 18797


目录

图像

上传图像

DSS Images   Other Images


相关文章

The Spacelab-1 Very Wide Field Survey of UV-excess objects. II - Analysis of 7 stars of various nature
Multiwavelength observations of seven stellar objects with strong UVexcesses are presented. The observations are IUE spectrophotometry,Stromgren Vuvby optical photometry, Johnson JHK infrared photometry,intermediate resolution optical spectroscopy, and in one case a CORAVELradial velocity survey. Three of the objects are field subdwarfs (one ofwhich is helium-rich) with z-distances of from -150 to -300 pc from thegalactic plane. A fourth subdwarf belongs to a binary system at z ofabout -500 pc; the primary of this system is a red giant. The threeother objects are normal gravity early-type stars which appear to belocated far below the galactic plane. One of them (CPD-61 deg 455) wouldappear to be a massive binary at z of about -5.8 kpc, and might providecritical clues concerning the nature of high latitude B stars if orbitalmotion is confirmed by future work.

The galactic reddening law - The evidence from uvby-beta photometry of B stars
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1985A&A...142..189T&db_key=AST

Four-colour and H beta photometry of southern B stars at high galactic latitudes
Four-color and H beta photometry has been obtained for 105 early-type HDstars with galactic latitudes less than -45 deg. They are mostly late Bstars of luminosity class V to III. Two new Am stars and several Ap orBp stars are detected photometrically. Absolute magnitudes aredetermined from the photometry and from MK types where available. Theinterstellar reddening of many of the more distant stars is very small,suggesting either the existence of undetected peculiar stars in thesample or that there are areas of effectively zero reddening at highsouthern galactic latitudes.

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:02h58m27.10s
赤纬:-62°36'12.1"
视星:9.771
右阿森松适当运动:4.6
赤纬适当运动:8.9
B-T magnitude:9.722
V-T magnitude:9.767

目录:
适当名称   (Edit)
HD 1989HD 18797
TYCHO-2 2000TYC 8862-107-1
USNO-A2.0USNO-A2 0225-00741163
HIPHIP 13860

→ 要求更多目录从vizier