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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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Observation and Astrometry data

Constellation:Petit Renard
Right ascension:20h41m53.84s
Declination:+20°41'12.2"
Apparent magnitude:7.957
Distance:452.489 parsecs
Proper motion RA:24.6
Proper motion Dec:-20
B-T magnitude:9.367
V-T magnitude:8.074

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 197248
TYCHO-2 2000TYC 1646-914-1
USNO-A2.0USNO-A2 1050-18407458
HIPHIP 102149

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