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Times of Minima for Some Eclipsing Binaries Times of minima for a number of some eclipsing binaries are presented.
Radial velocities. Measurements of 2800 B2-F5 stars for HIPPARCOS Radial velocities have been determined for a sample of 2930 B2-F5 stars,95% observed by the Hipparcos satellite in the north hemisphere and 80%without reliable radial velocity up to now. Observations were obtainedat the Observatoire de Haute Provence with a dispersion of 80Ä,mm(-1) with the aim of studying stellar and galactic dynamics.Radial velocities have been measured by correlation with templates ofthe same spectral class. The mean obtained precision is 3.0 km s(-1)with three observations. A new MK spectral classification is estimatedfor all stars. Based on observations made at the Haute ProvenceObservatory, France and on data from The Hipparcos Catalogue, ESA.Tables 4, 5 and 6 are only available in electronic form at the CDS viaanonymous ftp to cdsarc.u-strasbg.fr or viahttp://cdsweb.u-strasbg.fr/Abstract.htm
UBVRI light curves of RW Tauri Abstract image available at:http://adsabs.harvard.edu/abs/1977PASP...89..533B
UBVRI Primary and Secondary Eclipse Curves of RW Tauri Not Available
The light variation of the Ap star HD 25823. Abstract image available at:http://adsabs.harvard.edu/abs/1974A&A....34..297R
Photometric investigations of magnetic stars. Abstract image available at:http://adsabs.harvard.edu/abs/1973A&A....22..209S
A Photoelectric Study of the Eclipsing Variable RW Tauri. Abstract image available at:http://adsabs.harvard.edu/abs/1959ApJ...129...62G

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Observation and Astrometry data

Constellation:	Stier
Right ascension:	04^h05^m12.26^s
Declination:	+27Â°36'35.0"
Apparent magnitude:	7.935
Distance:	201.613 parsecs
Proper motion RA:	16.6
Proper motion Dec:	-29.2
B-T magnitude:	8.099
V-T magnitude:	7.949

Catalogs and designations:

Proper Names	(Edit)
HD 1989	HD 25626
TYCHO-2 2000	TYC 1822-2012-1
USNO-A2.0	USNO-A2 1125-01443237
HIP	HIP 19068

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