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HD 208916


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Starspot photometry with robotic telescopes. UBV(RI)_C and by light curves of 47 active stars in 1996/97
We present continuous multicolor photometry for 47 stars from October1996 through June 1997. Altogether, 7073 V(RI)_c, UBV, and by datapoints, each the average of three individual readings, were acquiredwith three automatic photoelectric telescopes (APTs) at FairbornObservatory in southern Arizona. Most of our targets arechromospherically active single and binary stars of spectral type G to Kbut there are also four pre-main-sequence objects and three pulsatingstars in our sample. The light variability is generally due torotational modulation of an asymmetrically spotted stellar surface andtherefore precise rotational periods and their seasonal variations aredetermined from Fourier analysis. We also report on photometricvariations of gamma CrB (A0V) with a period of 0.44534 days. All dataare available in numerical form. All data are available from CDS viaanonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or viahttp://cdsweb.u-strasbg.fr/Abstract.html

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Observation and Astrometry data

Constellation:Lézard
Right ascension:21h58m23.21s
Declination:+44°08'44.6"
Apparent magnitude:7.73
Distance:390.625 parsecs
Proper motion RA:-7.9
Proper motion Dec:-9.4
B-T magnitude:9.692
V-T magnitude:7.892

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 208916
TYCHO-2 2000TYC 3197-157-1
USNO-A2.0USNO-A2 1275-16818841
HIPHIP 108465

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