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

TYC 4391-731-1


Contenidos

Imágenes

Subir su imagen

DSS Images   Other Images


Artículos relacionados

Observations of Binary Stars with the Differential Speckle Survey Instrument. II. Hipparcos Stars Observed in 2010 January and June
The results of 497 speckle observations of Hipparcos stars and selectedother targets are presented. Of these, 367 were resolved into componentsand 130 were unresolved. The data were obtained using the DifferentialSpeckle Survey Instrument at the WIYN 3.5 m Telescope. (The WIYNObservatory is a joint facility of the University of Wisconsin-Madison,Indiana University, Yale University, and the National Optical AstronomyObservatories.) Since the first paper in this series, the instrument hasbeen upgraded so that it now uses two electron-multiplying CCD cameras.The measurement precision obtained when comparing to ephemeris positionsof binaries with very well known orbits is approximately 1-2 mas inseparation and better than 0fdg6 in position angle. Differentialphotometry is found to be in very good agreement with Hipparcos measuresin cases where the comparison is most relevant. We derive preliminaryorbits for two systems.

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:11h11m43.34s
Declinación:+72°39'28.1"
Magnitud Aparente:9.693
Movimiento Propio en Ascensión Recta:-8
Movimiento Propio en Declinación:0.5
B-T magnitude:10.27
V-T magnitude:9.741

Catálogos y designaciones:
Nombres Propios   (Edit)
TYCHO-2 2000TYC 4391-731-1
USNO-A2.0USNO-A2 1575-03143431
HIPHIP 54686

→ Solicitar más catálogos y designaciones a VizieR