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

HD 170074


Contingut

Imatges

Carregar la teva Imatge

DSS Images   Other Images


Articles Relacionats

Two-colour photometry for 9473 components of close Hipparcos double and multiple stars
Using observations obtained with the Tycho instrument of the ESAHipparcos satellite, a two-colour photometry is produced for componentsof more than 7 000 Hipparcos double and multiple stars with angularseparations 0.1 to 2.5 arcsec. We publish 9473 components of 5173systems with separations above 0.3 arcsec. The majority of them did nothave Tycho photometry in the Hipparcos catalogue. The magnitudes arederived in the Tycho B_T and V_T passbands, similar to the Johnsonpassbands. Photometrically resolved components of the binaries withstatistically significant trigonometric parallaxes can be put on an HRdiagram, the majority of them for the first time. Based on observationsmade with the ESA Hipparcos satellite.

New Photoelectric Minima Times of TZ Draconis and its Period Study
Not Available

Visual multiples. VIII - 1000 MK types
A total of 1000 new classifications are given for stars brighter than B= 8.0 mag in the Aitken double star catalog. The classificationssupplement 865 classifications obtained in 1981 and 1984. Among thenewly discovered stars are 12 new Ap stars, eight Lambda Bootis stars,one Ba II star, and 60 Am stars. A detailed list of the newclassifications is given.

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:Lyra
Ascensió Recta:18h25m17.50s
Declinació:+46°53'07.4"
Magnitud Aparent:7.992
Distancia:251.256 parsecs
Moviment propi RA:-7.1
Moviment propi Dec:0.1
B-T magnitude:8.002
V-T magnitude:7.993

Catàlegs i designacions:
Noms Propis   (Edit)
HD 1989HD 170074
TYCHO-2 2000TYC 3530-86-1
USNO-A2.0USNO-A2 1350-09664678
HIPHIP 90283

→ Sol·licitar més catàlegs i designacions de VizieR