The word "Hipparcos" is an acronym for HIgh Precision PARallax COllecting Satellite and also a reference to the ancient Greek astronomer Hipparchus of Nicaea, who is noted for applications …

Hipparcos, a European mission, pinpointed the positions of more than one hundred thousand stars to high precision, and more than one million stars to lesser precision. Hipparcos turned …

Launched in August 1989, Hipparcos successfully observed the celestial sphere for 3.5 years before operations ceased in March 1993. Calculations from observations by the main …

2024年9月16日 · The Hipparcos and Tycho Catalogues are the primary products of the European Space Agency's astrometric mission, Hipparcos. The satellite, which operated for four years, …

Unique to Europe was the very first space mission for measuring the positions, distances, motions, brightness and colours of stars - for astrometry, as the experts call it. ESA's …

2023年8月10日 · Launched in August 1989 by an Ariane-4 rocket, Hipparcos was a pioneering space experiment dedicated to the precise measurement of the positions, parallaxes and …

The Hipparcos Catalogue can be searched by ship (which calls scat) and plotted by skymap. It is available here in a gzipped file, hipparcos.tar.gz, in Sun/Mac byte order, which can be read …

The ICRF is a practical realization, and currently consists of a catalogue of equatorial coordinates for 608 extragalactic radio sources observed by VLBI. The best optical realization of the ICRF …

The first ever astrometric satellite, and predecessor of the Gaia mission, was the European Space Agency's Hipparcos mission, loosely named after the Greek astronomer Hipparchus. It was …

Hipparcos is a satellite that was used to make the Hipparcos catalog of 118,000 stars with unprecedented precision. The European Space Agency (ESA) launched it in 1989 and it …