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 335569


Contents

Images

Upload your image

DSS Images   Other Images


Related articles

Exact equatorial coordinates of known or new components of some 200 double or multiple systems
A catalog of binary and multiple star systems is being defined as aprelude to astrometric measurements scheduled for the Hipparchossatellite, which will be launched in 1988. Each system is beingphotographed twice to account for known and new components. Positivedeclinations are drawn from the AGK3 catalog, while the SAO catalogfurnishes the negative declinations. Mean square errors are beingcomputed for positions recorded in each of the photographs, yielding anumerical accuracy of 0.001 sec and 0.01 arcsec. The resulting data basewill contain the UNSO designation, the component types, the system name,the photographic magnitude, the spectrum, the observation epoch, theright ascension, the equinoctial declination, the angular position indegrees from the 2000.0 equinox, the recorded position, and remarks asto known features of the objects.

Submit a new article


Related links

  • - No Links Found -
Submit a new link


Member of following groups:


Observation and Astrometry data

Constellation:Hercules
Right ascension:18h03m12.24s
Declination:+25°21'55.8"
Apparent magnitude:8.486
Distance:337.838 parsecs
Proper motion RA:-6.8
Proper motion Dec:36.7
B-T magnitude:8.927
V-T magnitude:8.523

Catalogs and designations:
Proper Names
HD 1989HD 335569
TYCHO-2 2000TYC 2095-3226-1
USNO-A2.0USNO-A2 1125-08900941
HIPHIP 88424

→ Request more catalogs and designations from VizieR