Home     Per cominciare     Sopravvivere Nell'Universo    
Inhabited Sky
    News@Sky     Astro Foto     La collezione     Forum     Blog New!     FAQ     Stampa     Login  

HD 3472


Contenuti

Immagini

Carica la tua immagine

DSS Images   Other Images


Articoli relazionati

Astrometric and astrophysical discontinuities between the galactic old disk and halo stellar populations
Intermediate band, RI, and DDO photometry of the weak-lined stars in thefirst three volumes of the Michigan catalogs of spectral type arediscussed on the basis of luminosity and heavy element abundance. Theinterface between the old disk (Fe/H greater than -0.8 dex) and halo(Fe/H less than -1.2 dex) populations represents discontinuities in boththe stellar motions and the stellar physics. The CN strengths of bothevolved and unevolved halo stars decrease with decreasing temperature,in a mirror image of the increase with decreasing temperature for thedisk objects. The result for the halo giants has been attributed to deepmixing in the stellar atmospheres but the similar result for unevolveddwarfs indicates a difference in formation rather than in evolutionaryprocess of the two populations.

Sottometti un nuovo articolo


Link relazionati

  • - Nessun link trovato -
Sottometti un nuovo link


Membro dei seguenti gruppi:


Osservazione e dati astrometrici

Costellazione:Tucano
Ascensione retta:00h36m54.98s
Declinazione:-64°52'00.9"
Magnitudine apparente:9.796
Moto proprio RA:141
Moto proprio Dec:23.7
B-T magnitude:10.373
V-T magnitude:9.844

Cataloghi e designazioni:
Nomi esatti   (Edit)
HD 1989HD 3472
TYCHO-2 2000TYC 8844-1213-1
USNO-A2.0USNO-A2 0225-00163467
HIPHIP 2913

→ Richiesta di ulteriori cataloghi da VizieR