J/A+A/390/173 RR Lyrae GCVS and TYC2 identifiers (Mennessier+, 2002)
Identification of RR Lyrae stars in the Tycho-2 catalogue.
Mennessier M.O., Colome J.
<Astron. Astrophys. 390, 173 (2002)>
=2002A&A...390..173M 2002A&A...390..173M
ADC_Keywords: Stars, variable ; Cross identifications
Keywords: stars: variables: RR Lyr - catalogs
Abstract:
The Tycho-2 catalogue (I/259) provides astrometric and photometric
data for the 2.5 million brightest stars in the sky. Therefore it can
provide much larger samples than the Hipparcos samples used to date in
statistical studies. The object of this paper is the
cross-identification of Tycho-2 sources and known variable stars of RR
Lyrae type. The Tycho-2 data of cross-identified sources are added
into the ASTRID specialized database. The present selection almost
doubles the size of the sample of RR Lyrae stars with available proper
motions.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table4.dat 28 172 GCVS and TYC2 identifiers of the 172 RR Lyrae
non-Hipparcos stars identified with a TYC2 source
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See also:
I/259 : The Tycho-2 Catalogue (Hog+ 2000)
II/214 : Combined General Catalogue of Variable Stars (Kholopov+ 1998)
Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 12 A12 --- TYC Tycho-2 (I/259) number (TYC1-TYC2-TYC3) (1)
14- 23 A10 --- GCVS GCVS (II/214) name
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Note (1): The TYC identifier is constructed from
the GSC region number (TYC1), the running number within the region
(TYC2) and a component identifier (TYC3) which is normally 1. Some
non-GSC running numbers were constructed for the first Tycho Catalogue
and for Tycho-2. The recommended star designation contains a hyphen
between the TYC numbers, e.g. TYC 1-13-1.
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History:
From electronic version of the journal
(End) James Marcout, Patricia Bauer [CDS] 05-Sep-2002