SIMBAD references

2000A&A...357..367H - Astronomy and Astrophysics, volume 357, 367-386 (2000/5-1)

Construction and verification of the Tycho-2 Catalogue.

HOG E., FABRICIUS C., MAKAROV V.V., BASTIAN U., SCHWEKENDIEK P., WICENEC A., URBAN S., CORBIN T. and WYCOFF G.

Abstract (from CDS):

The construction of the Tycho-2 Catalogue is described. The catalogue contains astrometric positions and proper motions as well as two-colour photometric data for 2.5 million stars. The Tycho-2 positions and magnitudes are based on precisely the same observations as the original Tycho Catalogue (hereafter Tycho-1) collected by the sky mapper of the ESA Hipparcos satellite, but Tycho-2 is much bigger and slightly more precise, owing to a more advanced reduction technique. Components of double stars with separations down to 0.8 arcsec are included. Proper motions precise to about 2.5 mas/yr are given as derived from a comparison with the Astrographic Catalogue and 143 other astrometric catalogues, all reduced to the Hipparcos celestial coordinate system. Tycho-2 supersedes in most applications Tycho-1, and the ACT and TRC catalogues based on Tycho-1.

Abstract Copyright:

Journal keyword(s): astrometry - techniques: photometric - catalogs - methods: data analysis

VizieR on-line data: <CDS Catalogue: I/259>

Simbad objects: 5

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2023.03.28-17:19:39

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