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TYC 1977-2113-1


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Radial velocities of population II binary stars. I.
Radial velocities for 114 Hipparcos stars, mostly high transversevelocity binaries without previous radial velocity measurements, arepublished. Measurements are made with the CORAVEL-type radial velocityspectrometer. The accuracy of measurements is better than 1 km/s. Twostars, BD +30 deg 2129A and HD 117466AB are found to be radial velocityvariables, and three more stars, HD 119515A, HD 131597AB, and HD 153344,are possible radial velocity variables.

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Observation and Astrometry data

Constellation:Löwe
Right ascension:10h52m49.64s
Declination:+22°45'59.6"
Apparent magnitude:10.438
Proper motion RA:-25.6
Proper motion Dec:23.8
B-T magnitude:10.863
V-T magnitude:10.474

Catalogs and designations:
Proper Names
TYCHO-2 2000TYC 1977-2113-1
USNO-A2.0USNO-A2 1125-06198909
HIPHIP 53198

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