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HD 29053


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W Ursae Majoris Contact Binary Variables as X-Ray Sources
We present cross-identification of archived ROSAT X-ray point sourceswith W UMa variable stars found in the All-Sky Automated Survey. A totalof 34 W UMa stars have been found associated with X-ray emission. Wecompute the distances of these W UMa systems and hence their X-rayluminosities. Our data support the ``supersaturation'' phenomenon seenin these fast rotators, namely that the faster a W UMa star rotates, theweaker its X-ray luminosity.

A catalogue of eclipsing variables
A new catalogue of 6330 eclipsing variable stars is presented. Thecatalogue was developed from the General Catalogue of Variable Stars(GCVS) and its textual remarks by including recently publishedinformation about classification of 843 systems and making correspondingcorrections of GCVS data. The catalogue1 represents thelargest list of eclipsing binaries classified from observations.

The 74th Special Name-list of Variable Stars
We present the Name-list introducing GCVS names for 3153 variable starsdiscovered by the Hipparcos mission.

Photometric Light-Curves of Southern BV-Stars
BV 480 = HD 149 573 A3 (Fig.1)

Bright Southern BV-Stars
Not Available

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Dades d'Observació i Astrometria

Constel·lació:Eridanus
Ascensió Recta:04h33m24.85s
Declinació:-23°56'19.7"
Magnitud Aparent:8.691
Distancia:452.489 parsecs
Moviment propi RA:10.7
Moviment propi Dec:-20.1
B-T magnitude:8.984
V-T magnitude:8.716

Catàlegs i designacions:
Noms Propis
HD 1989HD 29053
TYCHO-2 2000TYC 6464-2001-1
USNO-A2.0USNO-A2 0600-01857684
HIPHIP 21241

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