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HD 99822


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Ýlgili Makaleler

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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Gözlemler ve gökölçümü verileri

Takýmyýldýz:Erbogan
Sað Açýklýk:11h28m28.48s
Yükselim:-55°53'14.5"
Görünürdeki Parlaklýk:9.164
özdevim Sað Açýklýk:-53.7
özdevim Yükselim:18.3
B-T magnitude:9.717
V-T magnitude:9.21

Kataloglar ve belirtme:
Özgün isimleri   (Edit)
HD 1989HD 99822
TYCHO-2 2000TYC 8621-1752-1
USNO-A2.0USNO-A2 0300-12841782
HIPHIP 55989

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