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TYC 2995-1391-1


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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.

Mesures d'etoiles doubles faites AU refracteur de 38cm de l'Observatoire de Nice.
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Observation and Astrometry data

Constellation:Petit Lion
Right ascension:09h44m25.20s
Declination:+40°47'04.4"
Apparent magnitude:9.302
Proper motion RA:-0.2
Proper motion Dec:-6.5
B-T magnitude:10.482
V-T magnitude:9.4

Catalogs and designations:
Proper Names   (Edit)
TYCHO-2 2000TYC 2995-1391-1
USNO-A2.0USNO-A2 1275-07577654
HIPHIP 47776

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