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HD 108003


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Uvby-beta photometry of stars in the Michigan Spectral Catalogue. I - The Delta Del stars
uvby-beta photometry of 74 stars classified as Delta Del in Volume 1 ofthe Michigan Spectral Catalogue is presented. The photometry is inagreement with the spectral classification in that it indicates DeltaDel stars are metal-line-enhanced stars with equivalent-temperaturetypes of A9 + or - 2 subtypes. There is a discrepancy between theluminosity implied from the delta c1 index and the spectralclassification. It is argued that c1 is an inadequateluminosity indicator for some late A- to early F-type stars. Several ofthe Delta Del stars are known Delta Scuti pulsators, and some commentson the metallicism-pulsation relation are made.

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观测天体数据

星座:蒼蠅座
右阿森松:12h24m59.56s
赤纬:-68°26'06.2"
视星:8.456
距离:273.224 天文距离
右阿森松适当运动:-17.5
赤纬适当运动:-8.5
B-T magnitude:9.016
V-T magnitude:8.503

目录:
适当名称   (Edit)
HD 1989HD 108003
TYCHO-2 2000TYC 9228-729-1
USNO-A2.0USNO-A2 0150-09981266
HIPHIP 60576

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