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HD 90000


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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.

The 74th Special Name-list of Variable Stars
We present the Name-list introducing GCVS names for 3153 variable starsdiscovered by the Hipparcos mission.

H-beta photometry of southern early-type stars
H-beta photoelectric photometry is presented for 209 southern hemisphereearly-type stars from the HD catalog with galactic latitudes /b/ greaterthan 6 deg. Four-color photometry exists for all these stars and MKtypes for most of them. Absolute magnitudes have been estimated for allbut the emission-line stars and distances from the sun and the galacticplane determined.

Four colour photometry of southern early-type stars.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1978MNRAS.182..629K&db_key=AST

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Gözlemler ve gökölçümü verileri

Takýmyýldýz:Yelken
Sað Açýklýk:10h22m08.91s
Yükselim:-49°17'36.8"
Görünürdeki Parlaklýk:7.552
Uzaklýk:1020.408 parsek
özdevim Sað Açýklýk:-6.9
özdevim Yükselim:-0.6
B-T magnitude:7.386
V-T magnitude:7.539

Kataloglar ve belirtme:
Özgün isimleri   (Edit)
HD 1989HD 90000
TYCHO-2 2000TYC 8192-4367-1
USNO-A2.0USNO-A2 0375-10998749
HIPHIP 50780

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