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HD 30535


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Photometric variability in chromospherically active stars. III - The binary stars
Differential UBV photometry of 49 late-type chromospherically activebinary stars has been obtained. A total of 12,353 differential UBVmagnitudes have been acquired and are used to determine seasonalphotometric periods, amplitudes, mean brightnesses, maximum spotamplitudes, 'unspotted' differential magnitudes, and times of minimumlight. Standard Fourier techniques are used to investigate the cause ofthe light variability. Eight stars are found which exhibit lightvariations due not to spot activity but rather to ellipticity and/orreflection effect. Others show combinations of all three effects. Someof the systems also show substantial differences between theirrotational and orbital period.

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Observation and Astrometry data

Constellation:エリダヌス座
Right ascension:04h48m13.84s
Declination:-09°30'24.1"
Apparent magnitude:7.143
Distance:223.714 parsecs
Proper motion RA:-3.4
Proper motion Dec:-1.3
B-T magnitude:7.054
V-T magnitude:7.136

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 30535
TYCHO-2 2000TYC 5322-2301-1
USNO-A2.0USNO-A2 0750-01106059
HIPHIP 22304

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