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HD 126358


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Eight new δ Scuti stars
HD 23194, a member of the Pleiades, was found to pulsate with a periodof about 30min. The literature on the star is reviewed, and it isconcluded that it may be a marginal Am star in a binary system. HD 95321is an evolved Am (ρ Puppis) star with a 5.1-h periodicity. Modeidentification of its pulsation, based on multicolour photometry,suggests that the oscillation is probably non-radial with l=2. We alsoreport on the discovery of six other new δ Scuti stars, some ofwhich may be pulsating in gravity modes.

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:半人馬座
右阿森松:14h27m18.36s
赤纬:-60°58'25.7"
视星:9.647
右阿森松适当运动:-3.1
赤纬适当运动:-8.3
B-T magnitude:10.218
V-T magnitude:9.695

目录:
适当名称   (Edit)
HD 1989HD 126358
TYCHO-2 2000TYC 9006-3730-1
USNO-A2.0USNO-A2 0225-20201948
HIPHIP 70673

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