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HD 83784


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Recent Light Curves and Period Study of the Contact Binary W Ursae Majoris
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First Photometric observations at the Turkish National Observatory
In this paper, short information about the newly founded TurkishNational Observatory were given. The facilities of the observatory arebriefly introduced and the first observation at the observatory and theinformation about the atmospherical conditions were given.

Catalogue of proper motions in the declination of stars of the Moscow zenith zone.
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UBV Photometry of Stars whose Positions are Accurately Known
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1984A&AS...57..357O&db_key=AST

Photoelectric Observations of W UMa (BD +56 1400)
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Two (O-C) Residuals of W Ursae Majoris System
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I.A.U. Archives of Unpublished Observations of Variable Stars - 1979-1981 Data
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New Photoelectric Times of Minima and the Period Variations of the Eclipsing Variable W UMa
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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

Photoelectric minima of four eclipsing variables
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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.
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Observation and Astrometry data

Constellation:Ursa Major
Right ascension:09h42m42.03s
Declination:+55°39'56.3"
Apparent magnitude:8.891
Distance:93.721 parsecs
Proper motion RA:-33.9
Proper motion Dec:-103.7
B-T magnitude:9.977
V-T magnitude:8.981

Catalogs and designations:
Proper Names
HD 1989HD 83784
TYCHO-2 2000TYC 3810-944-1
USNO-A2.0USNO-A2 1425-07377033
HIPHIP 47629
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