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HD 137470


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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.

The Equatorial Coordinates of Components of Triple Stars from the Astrometric Satellite HIPPARCOS Input Catalogue - Part Two - the Results of Statistical Study of Data from Aitken's Catalogue of Double Stars / ADS
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Observation and Astrometry data

Constellation:Dragon
Right ascension:15h23m08.96s
Declination:+60°59'36.8"
Apparent magnitude:8.521
Distance:136.612 parsecs
Proper motion RA:-43.6
Proper motion Dec:33.9
B-T magnitude:9.046
V-T magnitude:8.565

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 137470
TYCHO-2 2000TYC 4181-774-1
USNO-A2.0USNO-A2 1500-05916245
HIPHIP 75302
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