INHABITED SKY

To Survive in the Universe

Top Contributors

→ Adopt this star

HD 204000

目录

图像
相关文章
相关链接
团体

图像

上传图像

DSS Images Other Images

相关文章

Two-colour photometry for 9473 components of close Hipparcos double and multiple stars Using observations obtained with the Tycho instrument of the ESAHipparcos satellite, a two-colour photometry is produced for componentsof more than 7 000 Hipparcos double and multiple stars with angularseparations 0.1 to 2.5 arcsec. We publish 9473 components of 5173systems with separations above 0.3 arcsec. The majority of them did nothave Tycho photometry in the Hipparcos catalogue. The magnitudes arederived in the Tycho B_T and V_T passbands, similar to the Johnsonpassbands. Photometrically resolved components of the binaries withstatistically significant trigonometric parallaxes can be put on an HRdiagram, the majority of them for the first time. Based on observationsmade with the ESA Hipparcos satellite.
Mesures de vitesses radiales. VII. Accompagnement AU sol DU programme d'observation DU satellite Hipparcos. Radial velocities. VII. Ground based measurements for Hipparcos. We publish 734 radial velocities of stars distributed in 28 fields of4x4deg. We continue the PPO series (Fehrenbach et al. 1987; Duflot etal. 1990 and 1992), using the Fehrenbach objective prism method.
Visual multiples. VIII - 1000 MK types A total of 1000 new classifications are given for stars brighter than B= 8.0 mag in the Aitken double star catalog. The classificationssupplement 865 classifications obtained in 1981 and 1984. Among thenewly discovered stars are 12 new Ap stars, eight Lambda Bootis stars,one Ba II star, and 60 Am stars. A detailed list of the newclassifications is given.
Mesures d'étoiles doubles faites au réfracteur de 38 cm de l'Observatoire de Nice Not Available

相关链接

- 没有找到链接 -

下列团体成员

观测天体数据

星座:	天鵝座
右阿森松:	21^h23^m40.11^s
赤纬:	+55Â°17'38.8"
视星:	7.959
距离:	355.872 天文距离
右阿森松适当运动:	-6.3
赤纬适当运动:	-19.4
B-T magnitude:	8.158
V-T magnitude:	7.976

目录:

适当名称
HD 1989	HD 204000
TYCHO-2 2000	TYC 3970-1117-1
USNO-A2.0	USNO-A2 1425-11820993
HIP	HIP 105630

→ 要求更多目录从vizier