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 138459


Contents

Images

Upload your image

DSS Images   Other Images


Related articles

A photometric study of wide visual double stars with significant relative proper motion
Photometric observations and uvby H-beta indices of 142 wide visualdouble stars are presented. Calibrations of the indices are used toderive MK class, color excess, absolute magnitude, effectivetemperature, and distance. The results are used to check candidatesdouble stars for the Hipparcos mission for opticity.

CCD measurements of visual binaries
CCD measurements of visual double stars were obtained with the ESO 1.5 mdanish reflector. All binaries observed are candidates for the HIPPARCOSInput Catalogue. More than 400 observations have been made in four clearnights. The accuracy obtained is comparable to the accuracy of thephotographic technique, but the observing and reduction times are oneorder of magnitude smaller.

Submit a new article


Related links

  • - No Links Found -
Submit a new link


Member of following groups:


Observation and Astrometry data

Constellation:てんびん座
Right ascension:15h32m47.21s
Declination:-17°55'44.9"
Apparent magnitude:9.157
Proper motion RA:3.9
Proper motion Dec:-12.4
B-T magnitude:9.909
V-T magnitude:9.22

Catalogs and designations:
Proper Names
HD 1989HD 138459
TYCHO-2 2000TYC 6188-1074-1
USNO-A2.0USNO-A2 0675-14367916
HIPHIP 76117

→ Request more catalogs and designations from VizieR