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

HD 170472


Contingut

Imatges

Carregar la teva Imatge

DSS Images   Other Images


Articles Relacionats

A Photometric Study of the W UMa-type Eclipsing Binary System GSC 0445-1993
Several new light minimum times for the eclipsing binary GSC0445–1993 have been determined from the observations by Koppelmanet al. and the orbital period of this system was revised. A photometricanalysis was carried out using the 2003 version of the Wilson-Devinneycode. The results reveal that GSC 0445–1993 is a W-type eclipsingbinary with a mass ratio of q = 0.323(±0.002) and an over-contactdegree of f = 22.8%(±4.2%). A small temperature differencebetween the components of ΔT = 135 K and an orbitalinclination of i = 65.7°(±0.3°) were obtained. Theasymmetry of its light curve (i.e., the O'Connell effect) for thisbinary star is explained by the presence of a dark spot on the moremassive component.

NSV 10892 is a W UMa Eclipsing Binary
NSV 10892 is an EW with a period of approximately 9 hours and anamplitude of 0.36 magnitudes.

Southern open clusters II. UBV and Hbeta photometry of 11 clusters between galactic longitudes 259d and 280d
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1973A&AS....9...97V&db_key=AST

The Galactic Cluster, NGC 6633.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1958ApJ...127..539H&db_key=AST

Untersuchung der offenen Sternhaufen IC 4665, NGC 6633, IC 4756
Not Available

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:Ophiucus
Ascensió Recta:18h29m19.79s
Declinació:+06°51'05.1"
Magnitud Aparent:9.102
Moviment propi RA:0.1
Moviment propi Dec:-2.6
B-T magnitude:9.152
V-T magnitude:9.107

Catàlegs i designacions:
Noms Propis   (Edit)
HD 1989HD 170472
TYCHO-2 2000TYC 445-1293-1
USNO-A2.0USNO-A2 0900-12967852
→ Sol·licitar més catàlegs i designacions de VizieR