Inici     Començant     Sobreviure a l'Univers    
Inhabited Sky
    News@Sky     Astro Fotografia     La Col·lecció     Fòrum     Blog New!     FAQ     Premsa     Login  

HD 204082


Contingut

Imatges

Carregar la teva Imatge

DSS Images   Other Images


Articles Relacionats

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 nou article


Enllaços Relacionats

  • - No s'ha trobat enllaços -
Enviar un nou enllaç


Membre dels grups següents:


Dades d'Observació i Astrometria

Constel·lació:Microscopium
Ascensió Recta:21h27m15.86s
Declinació:-34°54'10.6"
Magnitud Aparent:8.004
Distancia:4761.905 parsecs
Moviment propi RA:5
Moviment propi Dec:-28
B-T magnitude:9.853
V-T magnitude:8.157

Catàlegs i designacions:
Noms Propis   (Edit)
HD 1989HD 204082
TYCHO-2 2000TYC 7482-166-1
USNO-A2.0USNO-A2 0525-43281002
HIPHIP 105930

→ Sol·licitar més catàlegs i designacions de VizieR