Home     To Survive in the Universe    
Services
    Why to Inhabit     Top Contributors     Astro Photo     The Collection     Forum     Blog New!     FAQ     Login  
→ Adopt this star  

HD 230309


Contents

Images

Upload your image

DSS Images   Other Images


Related articles

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.

Mesures d'etoiles doubles effectuees AU refracteurs de 38 CM puis de 50 CM de l'Observatoire de Nice.
Not Available

Submit a new article


Related links

  • - No Links Found -
Submit a new link


Member of following groups:

Observation and Astrometry data

Constellation:Aigle
Right ascension:18h59m05.91s
Declination:+18°10'05.1"
Apparent magnitude:9.282
Proper motion RA:-20.1
Proper motion Dec:-29.6
B-T magnitude:9.979
V-T magnitude:9.34

Catalogs and designations:
Proper Names
HD 1989HD 230309
TYCHO-2 2000TYC 1589-118-1
USNO-A2.0USNO-A2 1050-12463793
HIPHIP 93205
→ Request more catalogs and designations from VizieR