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HD 83728

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CCD Times of Minima of Some Eclipsing Binaries in 2002 We present CCD observations of minima of 11 eclipsing binaries.
Recent Light Curves and Period Study of the Contact Binary W Ursae Majoris Not Available
New Light Curves and Period Study of the Contact Binary W Ursae Majoris O-C diagram and recent lightcurves are published for the prototype starW UMa
A numerical analysis of the variations of the light curve of W Ursae Majoris. Abstract image available at:http://adsabs.harvard.edu/abs/1972AJ.....77..230R
Photoelectric observations of three W UMa systems. Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1969AJ.....74..538B&db_key=AST
Times of minima and light curve variations of W UMa. Abstract image available at:http://adsabs.harvard.edu/abs/1964AJ.....69..365B
Notes on the color-curve and light-elements of W Ursae Majoris. Not Available

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Observation and Astrometry data

Constellation:	Großer Bär
Right ascension:	09^h42^m29.05^s
Declination:	+56Â°11'14.4"
Apparent magnitude:	8.875
Distance:	191.939 parsecs
Proper motion RA:	10.7
Proper motion Dec:	-10.2
B-T magnitude:	10.284
V-T magnitude:	8.992

Catalogs and designations:

Proper Names	(Edit)
HD 1989	HD 83728
TYCHO-2 2000	TYC 3810-233-1
USNO-A2.0	USNO-A2 1425-07376488
HIP	HIP 47609

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