Introduction The ESA satellite Hipparcos was launched in August 1989 and is now observing from November 1989. A series of papers describing the satellite, the various aspects of the observing programm...
The funds provided in this grant were used to analyze and publish results from Hipparcos observations. The PI was chosen for preferred access to Hipparcos data in 1983 for two programs. Those data, to...
The funds provided in this grant were used to analyze and publish results from Hipparcos observations. The PI was chosen for preferred access to Hipparcos data in 1983 for two programs. Those data, to...
Astrometry with the Hubble space telescope and Hipparcos satellite advanced the optical astrometric accuracies to the milliarcsec level. The global astrometric interferometer for astrophysics (GAIA) s...
Astrometry with the Hubble space telescope and Hipparcos satellite advanced the optical astrometric accuracies to the milliarcsec level. The global astrometric interferometer for astrophysics (GAIA) s...
The Hipparcos astrometry is used mainly for the derivation of stellar physcial quantities such as luminosity, masses and velocity. However, sample selections on data with observational errors or an in...