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

HD 39806


Contenidos

Imágenes

Subir su imagen

DSS Images   Other Images


Artículos relacionados

A Search for Lithium-Rich Giants among Stars with Infrared Excesses
The unusual nature of the single, rapidly rotating, lithium-rich K giantHDE 233517, which is currently undergoing significant mass loss,prompted a search for giants with similar properties. High-dispersionspectroscopic observations were obtained of HD 219025, a knownlithium-rich infrared-excess giant, plus 39 stars from a list of G and Kgiants with excess far-infrared emission. The projected rotationalvelocities of the vast majority of infrared-excess giants appear to besimilar to those of normal G and K giants. Six giants have lithiumabundances at or above theoretical upper envelope values. The percentageof such stars in the sample of 39 infrared-excess giants is similar tothat of normal giants. The three giants with the largest lithiumabundances have previously been discovered. None of the sample of 39giants have an Hα line similar to the broadened and veryasymmetric line of HDE 233517. The star with optical properties mostsimilar to HDE 233517 is HD 219025.

Luminosity Class III Stars with Excess Far-Infrared Emission
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1995ApJ...446L..79Z&db_key=AST

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:Paloma
Ascensión Recta:05h53m06.94s
Declinación:-39°31'26.3"
Magnitud Aparente:8.392
Distancia:363.636 parsecs
Movimiento Propio en Ascensión Recta:4.2
Movimiento Propio en Declinación:-7.7
B-T magnitude:10.308
V-T magnitude:8.551

Catálogos y designaciones:
Nombres Propios   (Edit)
HD 1989HD 39806
TYCHO-2 2000TYC 7602-1269-1
USNO-A2.0USNO-A2 0450-02273178
HIPHIP 27811

→ Solicitar más catálogos y designaciones a VizieR