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Kinematics of Hipparcos Visual Binaries. II. Stars with Ground-Based Orbital Solutions
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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.
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One-thousand eighty-eight observations of 947 binary star systems,observed by means of speckle interferometry with the 4 m telescope onCerro Tololo, are presented. These measurements, made during the period1989-1991, comprise the second installment of results stemming from theexpansion of our speckle program to the southern hemisphere.
| Selection of standard stars for photometric observations with the 91-cm reflector at Okayama
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| Micrometer measures of 401 double stars.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1972AJ.....77..878W&db_key=AST
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Not Available
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Datos observacionales y astrométricos
| Constelación: | Can Mayor |
| Ascensión Recta: | 06h54m32.94s |
| Declinación: | -27°33'33.8" |
| Magnitud Aparente: | 8.455 |
| Distancia: | 74.963 parsecs |
| Movimiento Propio en Ascensión Recta: | -23.1 |
| Movimiento Propio en Declinación: | 0.4 |
| B-T magnitude: | 9.297 |
| V-T magnitude: | 8.525 |
Catálogos y designaciones:
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