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HD 85088


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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.

Binary star measurements made at Nice with the 50-cm reflector
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1989A&AS...77..125L&db_key=AST

Micrometer observations of double stars.8.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1975ApJS...29..315H&db_key=AST

Mesures d'étoiles doubles faites au réfracteur de 38 cm de l'Observatoire de Nice
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Mesures d'étoiles doubles effectuées au réfracteur de 38 cm de l'Observatoires de Nice
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Osservazione e dati astrometrici

Costellazione:Leone
Ascensione retta:09h49m57.94s
Declinazione:+16°33'35.5"
Magnitudine apparente:8.831
Distanza:140.449 parsec
Moto proprio RA:-43.9
Moto proprio Dec:15.8
B-T magnitude:9.515
V-T magnitude:8.888

Cataloghi e designazioni:
Nomi esatti
HD 1989HD 85088
TYCHO-2 2000TYC 1411-360-1
USNO-A2.0USNO-A2 1050-06137951
HIPHIP 48226
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