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HD 169888

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A catalogue of eclipsing variables A new catalogue of 6330 eclipsing variable stars is presented. Thecatalogue was developed from the General Catalogue of Variable Stars(GCVS) and its textual remarks by including recently publishedinformation about classification of 843 systems and making correspondingcorrections of GCVS data. The catalogue1 represents thelargest list of eclipsing binaries classified from observations.
50 New Eccentric Eclipsing Binaries Found in the ASAS, Hipparcos and NSVS Databases This research presents 50 new eccentric binaries binaries found with thehelp of the NSVS, Hipparcos and ASAS-3 databases.
The 74th Special Name-list of Variable Stars We present the Name-list introducing GCVS names for 3153 variable starsdiscovered by the Hipparcos mission.

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Observation and Astrometry data

Constellation:	ヘルクレス座
Right ascension:	18^h25^m56.71^s
Declination:	+21Â°36'21.4"
Apparent magnitude:	7.688
Distance:	254.453 parsecs
Proper motion RA:	-0.3
Proper motion Dec:	20.4
B-T magnitude:	7.95
V-T magnitude:	7.71

Catalogs and designations:

Proper Names	(Edit)
HD 1989	HD 169888
TYCHO-2 2000	TYC 1581-1786-1
USNO-A2.0	USNO-A2 1050-10494640
HIP	HIP 90338

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