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HD 20379


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The classification of intrinsic variables. VIII - Ultrashort period Cepheids
The photometric and astrometric data for ultrashort-period Cepheids withmaximum visual magnitudes brighter than 11.5 are collected anddiscussed. Most of these variables are high-mass, little-evolved starswhich, in the halo and disk populations, are blue stragglers. Theluminosities are calibrated from membership in disk and halo populationgroups; the visual magnitude equals 8(1-/c1/sub c) for disk stars, where(C1)sub c is a reddening- and temperature-free parameter.

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观测天体数据

星座:天爐座
右阿森松:03h15m17.11s
赤纬:-37°02'30.1"
视星:8.647
距离:94.787 天文距离
右阿森松适当运动:37.7
赤纬适当运动:-4.8
B-T magnitude:9.222
V-T magnitude:8.695

目录:
适当名称   (Edit)
HD 1989HD 20379
TYCHO-2 2000TYC 7026-51-1
USNO-A2.0USNO-A2 0525-01100306
HIPHIP 15152

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