HIPPARCOS


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AcronymDefinition
HIPPARCOSHigh Precision Parallax Collecting Satellite
References in periodicals archive ?
It is estimated by the researchers that the cluster is 443 light-years away by using radio telescopes and is at odds with the measurements taken through the Hipparcos that shows the distance as 390 light-years.
Linking Hipparcos and ICRF2 is essential in order to uniformize the reference independently of whether the source is visible (HCRF) or not (ICRF).
Further, I obtained access to the photometry of all of the stars observed by Hipparcos [2].
These observations, re-analyzed with the Hipparcos Catalogue (ESA 1997), were then used to determine the Earth Orientation Parameters (EOP) at 5-day intervals, covering the interval 1899.7 -1992.0 (Vondrak et al., 1998; Vondrak et al., 2000; Ron and Vondrak, 2001).
Despues de un breve recorrido alrededor de Saturno y su majestuoso sistema de anillos nos dirigimos a la vecindad solar, impacientes por mirar nuestra galaxia en su totalidad, con todas las estrellas en su posicion real, tal como la determino la mision espacial Hipparcos. De alli nos dirigimos fuera de nuestra galaxia para apreciar el Grupo Local, un conjunto de galaxias unido por la gravedad y dominado por la Via Lactea y Andromeda.
QUIZ OF THE DAY: 1 Eddie Irving; 2 A mountain range; 3 Cerne Abbas Giant; 4 Beetroot; 5 Joan of Arc; 6 When Harry Met Sally; 7 Michael Heseltine; 8 Hipparcos; 9 H.G.
ANSWERS: 1 Eddie Irving; 2 A mountain range; 3 Cerne Abbas Giant; 4 Beetroot; 5 Joan of Arc; 6 When Harry Met Sally; 7 Michael Heseltine; 8 Hipparcos; 9 H.G.
Among the topics are an overview of the Gaia Mission, a wide-field telescope in northern Arizona, astrometry and the virtual observatory, extracting sub-milliarcsecond parallaxes from Hipparcos data, NASA programs, the future of astrometric education, and the current state of scientific imagers for astronomy.
We originally began observing HD199122 as a SPB based on its appearance in the list of such stars found through Hipparcos data examination by Koen (MNRAS, 321, 44, 2001).
The observations by optical astrometry has recently been reanalyzed in the Hipparcos reference frame (Vondrak 1999, Vondrak et al.
As part of the calibration effort for the WIRE satellite, investigation of the Hipparcos database allowed stars of any given spectral type to be separated for magnitudes as faint as V=12.
The scientific promise of space exploration reached maturity with the results from Hubble, the Cosmic Background Explorer, Hipparcos, Compton Gamma Ray Observatory, and their siblings.