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HD 100284


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B.R.N.O. Times of minima
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Pulkovo compilation of radial velocities for 35495 stars in a common system.
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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.

The 74th Special Name-list of Variable Stars
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Double Star Measurements Made at Nice
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1993A&AS..102..643M&db_key=AST

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A catalog is presented of the double-star-program (DS-program) starpositions, listing right ascensions for 930 DSs and declinations for1225 DSs of the program. The positions were compiled from the observedvalues obtained between 1980 and 1987 with the meridian circles of sixUSSR observatories (the Moscow, Kazan', Kiev, Khar'kov, Odessa, andTashkent Observatories) and the Belgrade Observatory. The measurementsand the treatment of the observational material were performed using therelative method, and the FK-4 system stars were used as reference stars.

Mikrometermessungen von Doppelsternen. VI.
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Dades d'Observació i Astrometria

Constel·lació:Ursa Major
Ascensió Recta:11h32m52.97s
Declinació:+55°25'06.8"
Magnitud Aparent:8.911
Distancia:214.133 parsecs
Moviment propi RA:-20.6
Moviment propi Dec:5.8
B-T magnitude:9.347
V-T magnitude:8.947

Catàlegs i designacions:
Noms Propis   (Edit)
HD 1989HD 100284
TYCHO-2 2000TYC 3828-697-1
USNO-A2.0USNO-A2 1425-07680306
HIPHIP 56330

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