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HD 93198


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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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观测天体数据

星座:船帆座
右阿森松:10h45m00.65s
赤纬:-43°51'58.8"
视星:8.856
距离:309.598 天文距离
右阿森松适当运动:-19.1
赤纬适当运动:8.1
B-T magnitude:9.12
V-T magnitude:8.878

目录:
适当名称   (Edit)
HD 1989HD 93198
TYCHO-2 2000TYC 7735-885-1
USNO-A2.0USNO-A2 0450-11909550
HIPHIP 52572

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