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HD 54547


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Observations of Hipparcos short-period red giant stars
Optical UBV(RI)C and infrared JHK photometry is presented ofa small sample of giant stars with short periods in the Hipparcoscatalogue. Observations were limited, but were sufficient to rule outmost of the Hipparcos periods. Radial velocity measurement were alsomade for a few stars, over six successive nights. Low-level variabilitywas detected in a few stars. It is argued that in most cases thebrightness variations are primarily due to temperature changes. Thesefindings show that high-overtone pulsations in M giant stars occur, ifat all, in a far more limited number of stars than proposed in theauthors' previous discussion of the Hipparcos data alone.

The 74th Special Name-list of Variable Stars
We present the Name-list introducing GCVS names for 3153 variable starsdiscovered by the Hipparcos mission.

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观测天体数据

星座:大犬座
右阿森松:07h08m27.67s
赤纬:-18°36'11.0"
视星:7.215
距离:303.951 天文距离
右阿森松适当运动:-14.6
赤纬适当运动:19.3
B-T magnitude:9.361
V-T magnitude:7.393

目录:
适当名称   (Edit)
HD 1989HD 54547
TYCHO-2 2000TYC 5968-2883-1
USNO-A2.0USNO-A2 0675-04972279
HIPHIP 34448

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