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HD 209420

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Eight New Small Amplitude Variables We report the discovery of small amplitude variability of six cool starsand discuss the nature of their light change. Two unsolved variablesdetected by Hipparcos are discussed, too. Six stars of the sample belongto the SRVs, whereas in case of the other two objects variability ismost likely caused by a spotted surface.
The SVS Numbering Series Discontinued Not Available
Formation of the Variable Star Nomenclature Group Not Available

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观测天体数据

星座:	飛馬座
右阿森松:	22^h02^m46.75^s
赤纬:	+28Â°30'41.6"
视星:	8.275
距离:	613.497 天文距离
右阿森松适当运动:	-7
赤纬适当运动:	-11.2
B-T magnitude:	10.159
V-T magnitude:	8.431

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适当名称
HD 1989	HD 209420
TYCHO-2 2000	TYC 2215-1821-1
USNO-A2.0	USNO-A2 1125-19024170
HIP	HIP 108823

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