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HD 57132


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Two-colour photometry for 9473 components of close Hipparcos double and multiple stars
Using observations obtained with the Tycho instrument of the ESAHipparcos satellite, a two-colour photometry is produced for componentsof more than 7 000 Hipparcos double and multiple stars with angularseparations 0.1 to 2.5 arcsec. We publish 9473 components of 5173systems with separations above 0.3 arcsec. The majority of them did nothave Tycho photometry in the Hipparcos catalogue. The magnitudes arederived in the Tycho B_T and V_T passbands, similar to the Johnsonpassbands. Photometrically resolved components of the binaries withstatistically significant trigonometric parallaxes can be put on an HRdiagram, the majority of them for the first time. Based on observationsmade with the ESA Hipparcos satellite.

ICCD Speckle Observations of Binary Stars. XVII. Measurements During 1993-1995 From the Mount Wilson 2.5-M Telescope.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1997AJ....114.1639H&db_key=AST

ICCD Speckle Observations of Binary Stars. XIII. Measurements During 1989- 1994 From the Cerro Tololo 4 M Telescope
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1996AJ....111..936H&db_key=AST

Mesures d'étoiles doubles faites au 0,38 m de l'Observatoire de Paris.
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Gözlemler ve gökölçümü verileri

Takýmyýldýz:Kucuk Kopek
Sað Açýklýk:07h20m02.62s
Yükselim:+03°46'36.6"
Görünürdeki Parlaklýk:8.005
Uzaklýk:1086.957 parsek
özdevim Sað Açýklýk:1
özdevim Yükselim:-4.9
B-T magnitude:9.799
V-T magnitude:8.154

Kataloglar ve belirtme:
Özgün isimleri
HD 1989HD 57132
TYCHO-2 2000TYC 172-2250-1
USNO-A2.0USNO-A2 0900-04744209
HIPHIP 35538
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