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HD 107226


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Radial Velocities of Population II Stars. II.
A program for radial velocity measurements of Population II stars wasstarted in 1988 and was carried out during six observing runs. Theprogram includes metal-deficient stars, components of Population IIvisual binaries or common proper motion stars, suspected radial velocityvariables and the Population II stars from the Hipparcos program. Themeasurements were made with the 1 meter reflector at the MaidanakObservatory in Uzbekistan. The average error of a single measurement isabout 0.6 km/s, but for stars at 13 mag or for extremely metal-deficientstars the error is about 2.5 km/s. The catalog contains 621 measurementsfor 164 stars.

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Observation and Astrometry data

Constellation:Virgo
Right ascension:12h19m40.24s
Declination:+10°01'28.4"
Apparent magnitude:8.772
Proper motion RA:-42.5
Proper motion Dec:-30.6
B-T magnitude:9.529
V-T magnitude:8.835

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 107226
TYCHO-2 2000TYC 876-602-1
USNO-A2.0USNO-A2 0975-06938615

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