Principal     Comenzar     To Survive in the Universe    
Inhabited Sky
    News@Sky     Astrofotografía     La Colección     Foro     Blog New!     FAQ     Prensa     Login  

HD 83141


Contenidos

Imágenes

Subir su imagen

DSS Images   Other Images


Artículos relacionados

Absolute stellar proper motions with reference to galaxies of the M81 group
We report on the measurement of absolute proper motions of stars ofmagnitude 7 to 14.5 in a 2 deg X 2 deg field in the region of the M81group of galaxies. This work is part of the Bonn program for theextragalactic link of Hipparcos. The proper motions were determined froma collection of photographic plates covering the time interval from 1894to 1994. The absolute reference system for the proper motions isrepresented by the galaxies M81, M81, and NGC3077, for which accurateoptical reference positions were obtained by means of an imagecross-correlation technique. For the majority of stars, the internalproper motion accuracy is better than 1 mas/a. The precision of therealization of the absolute system is found to be around 1 mas/a. Intotal, our measurements yield absolute proper motions for 24 Hipparcosstars and positions, proper motions and photometry for 330 additionalstars including a number of visual binaries and high proper motionstars. Among the latter one G-type sub-dwarf is identified. The resultsare relevant as a contribution to the Hipparcos link, but also as adatabase for kinematic investigations.

Enviar un nuevo artículo


Enlaces relacionados

  • - No se han encontrado enlaces -
En viar un nuevo enlace


Miembro de los siguientes grupos:


Datos observacionales y astrométricos

Constelación:Osa Mayor
Ascensión Recta:09h40m08.74s
Declinación:+70°17'52.6"
Magnitud Aparente:9.036
Movimiento Propio en Ascensión Recta:-8.5
Movimiento Propio en Declinación:-2.9
B-T magnitude:9.801
V-T magnitude:9.1

Catálogos y designaciones:
Nombres Propios   (Edit)
HD 1989HD 83141
TYCHO-2 2000TYC 4386-1761-1
USNO-A2.0USNO-A2 1575-02998794
HIPHIP 47443

→ Solicitar más catálogos y designaciones a VizieR