ADC Dataset: I/259 -- The Tycho-2 Catalogue of the 2.5 Million Brightest Stars (2000)

E. Hog, C. Fabricius, V. V. Makarov, S. Urban, T. Corbin, G. Wycoff, U. Bastian, P. Schwekendiek, A. Wicenec

Keywords: Positional data ; Proper motions ; Surveys ; Photometry ; Stars, double and multiple ; astrometry ; stars: fundamental parameters ; catalogs

· Source Reference(s):

Astron. Astrophys., Vol. 355, p.27, 2000 (ADS: 2000A&A...355L..27H)

· Brief Description of Dataset (Click here to see more details.):

The Tycho-2 Catalogue is an astrometric reference catalogue containing positions and proper motions as well as two-colour photometric data for the 2.5 million brightest stars in the sky. The Tycho-2 positions and magnitudes are based on precisely the same observations as the original Tycho Catalogue (hereafter Tycho-1; see Cat. <I/239>)) collected by the star 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 ground-based astrometric catalogues, all reduced to the Hipparcos celestial coordinate system. Tycho-2 supersedes in most applications Tycho-1, as well as the ACT (Cat. <I/246>) and TRC (Cat. <I/250>) catalogues based on Tycho-1. Supplement-1 lists stars from the Hipparcos and Tycho-1 Catalogues which are not in Tycho-2. Supplement-2 lists 1146 Tycho-1 stars which are probably either false or heavily disturbed.

(Description continues... click here to see entire text)

· Quick Access to This Dataset:

FTP ADC Viewer

· See Also:

Dataset: I/239: The Hipparcos and Tycho Catalogues (ESA 1997)
Dataset: I/211: CCDM (Components of Double and Multiple stars) (Dommanget+ 1994)
Dataset: I/246: The ACT Reference Catalog (Urban+ 1997)
Dataset: I/250: The Tycho Reference Catalogue (Hog+ 1998)
Web Link: Tycho-2 home page

· Data Set Contents:

This data set includes 23 table, 0 image/graphic, and 2 text files.

Click on File Name to review table fields and notes.

File Name	File Type	Description	Access Methods
1259_tyc2_00.dat	table	*The Tycho-2 main catalogue	*FTP*	*ADC Viewer*
1259_tyc2_01.dat	table	*The Tycho-2 main catalogue	*FTP*	*ADC Viewer*
1259_tyc2_02.dat	table	*The Tycho-2 main catalogue	*FTP*	*ADC Viewer*
1259_tyc2_03.dat	table	*The Tycho-2 main catalogue	*FTP*	*ADC Viewer*
1259_tyc2_04.dat	table	*The Tycho-2 main catalogue	*FTP*	*ADC Viewer*
1259_tyc2_05.dat	table	*The Tycho-2 main catalogue	*FTP*	*ADC Viewer*
1259_tyc2_06.dat	table	*The Tycho-2 main catalogue	*FTP*	*ADC Viewer*
1259_tyc2_07.dat	table	*The Tycho-2 main catalogue	*FTP*	*ADC Viewer*
1259_tyc2_08.dat	table	*The Tycho-2 main catalogue	*FTP*	*ADC Viewer*
1259_tyc2_09.dat	table	*The Tycho-2 main catalogue	*FTP*	*ADC Viewer*
1259_tyc2_10.dat	table	*The Tycho-2 main catalogue	*FTP*	*ADC Viewer*
1259_tyc2_11.dat	table	*The Tycho-2 main catalogue	*FTP*	*ADC Viewer*
1259_tyc2_12.dat	table	*The Tycho-2 main catalogue	*FTP*	*ADC Viewer*
1259_tyc2_13.dat	table	*The Tycho-2 main catalogue	*FTP*	*ADC Viewer*
1259_tyc2_14.dat	table	*The Tycho-2 main catalogue	*FTP*	*ADC Viewer*
1259_tyc2_15.dat	table	*The Tycho-2 main catalogue	*FTP*	*ADC Viewer*
1259_tyc2_16.dat	table	*The Tycho-2 main catalogue	*FTP*	*ADC Viewer*
1259_tyc2_17.dat	table	*The Tycho-2 main catalogue	*FTP*	*ADC Viewer*
1259_tyc2_18.dat	table	*The Tycho-2 main catalogue	*FTP*	*ADC Viewer*
1259_tyc2_19.dat	table	*The Tycho-2 main catalogue	*FTP*	*ADC Viewer*
1259_suppl_1.dat	table	The Tycho-2 supplement-1	*FTP*	*ADC Viewer*
1259_suppl_2.dat	table	The Tycho-2 supplement-2	*FTP*	*ADC Viewer*
1259_index.dat	table	Index to Tycho-2 and supplement-1	*FTP*	*ADC Viewer*
1259_guide.pdf	pdf	Guide to Tycho-2 Catalog	*FTP*
1259_guide.ps	postscript	Guide to Tycho-2 Catalog	*FTP*