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HD 107730


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Monitoring of spotted RS CVn and BY Dra type stars. I. Simultaneous optical and infrared photometry
UBV(RI)cJHK photometry of 6 active stars, collected at theSouth African Astronomical Observatory in 1996 and 1997, is presented.The light and colour curves, which are compared with those observed atprevious epochs, show significant variation in their wave-likemodulation and in their maximum brightness.

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Observation and Astrometry data

Constellation:からす座
Right ascension:12h22m45.88s
Declination:-13°06'56.1"
Apparent magnitude:9.165
Proper motion RA:6.1
Proper motion Dec:-18
B-T magnitude:10.459
V-T magnitude:9.272

Catalogs and designations:
Proper Names
HD 1989HD 107730
TYCHO-2 2000TYC 5532-82-1
USNO-A2.0USNO-A2 0750-07823432
HIPHIP 60372
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