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HD 64810


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Southern metal-poor stars - UBVRI photometry
Considering the study of subdwarf kinematics and metallicities by Eggen,Lynden-Bell, and Sandage (1962), UBVRI photometry and normalizedultraviolet excesses are presented for 178 metal-poor stars, 144 ofwhich are contained in the kinematically unbiased list of Bidelman andMacConnell (1973). The Lowell 0.6 m telescope at Cerro Tololo was used,equipped with a single-channel photometer and a Ga-As photomultiplier.The final magnitudes and colors, number of observations, value ofdelta(U-B)0.6 (if B-V lies between 0.35 and 0.90), B and M class, andpublished spectral types for these stars are presented; severalextremely metal-poor stars are evident. In addition, sixteen nearbyvisual companions of the stars were measured, and their magnitudes andcolors are given.

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Observation and Astrometry data

Constellation:りゅうこつ座
Right ascension:07h53m05.61s
Declination:-52°40'29.1"
Apparent magnitude:7.717
Distance:297.619 parsecs
Proper motion RA:-0.3
Proper motion Dec:11.4
B-T magnitude:9.188
V-T magnitude:7.839

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 64810
TYCHO-2 2000TYC 8553-514-1
USNO-A2.0USNO-A2 0300-03411029
HIPHIP 38504

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