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HD 197248


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Photometric and astrometric observations of close visual binaries
The first photoelectric sequence for the magnitude differences of 215close visual binaries in the Johnson UBV and Stromgren uvby systems havebeen established. In addition, the position angle and the separation of140 stars were measured. Finally, for 134 stars, new photoelectricmeasurements of the combined integral brightness of both components inthe UBV and Stromgren systems were made. The measurements were carriedout using the area scanning technique.

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观测天体数据

星座:狐狸座
右阿森松:20h41m53.84s
赤纬:+20°41'12.2"
视星:7.957
距离:452.489 天文距离
右阿森松适当运动:24.6
赤纬适当运动:-20
B-T magnitude:9.367
V-T magnitude:8.074

目录:
适当名称   (Edit)
HD 1989HD 197248
TYCHO-2 2000TYC 1646-914-1
USNO-A2.0USNO-A2 1050-18407458
HIPHIP 102149

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