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HD 479


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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.

Clusters in the Region of the North America Nebula.
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7th list of new Southern double stars found at the Lamont-Hussey Observatory of the University of Michigan at Bloemfontein, South Africa.
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观测天体数据

星座:鳳凰座
右阿森松:00h09m06.98s
赤纬:-50°00'49.1"
视星:8.45
距离:729.927 天文距离
右阿森松适当运动:1.3
赤纬适当运动:-7.7
B-T magnitude:9.954
V-T magnitude:8.575

目录:
适当名称   (Edit)
HD 1989HD 479
TYCHO-2 2000TYC 8028-94-1
USNO-A2.0USNO-A2 0375-00044313
HIPHIP 743

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