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HD 41590


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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.

UBV photometry of stars whose positions are accurately known. II
The present report on the UBV observations of stars with favorableastrometric history gives attention to stars of the BD zones lyingbetween 50 and 54 deg. These observations and their reductions wereperformed from August 1983 to August 1984, as described by Oja (1984).Results are presented as tables for both the standard stars and theprogram stars. Comparisons are conducted between the present Vmagnitudes and those of the NPZT (1982) and AGK3R (1978) catalogs.

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Gözlemler ve gökölçümü verileri

Takýmyýldýz:Arabaci
Sað Açýklýk:06h09m04.31s
Yükselim:+52°25'16.4"
Görünürdeki Parlaklýk:8.626
Uzaklýk:286.533 parsek
özdevim Sað Açýklýk:11.9
özdevim Yükselim:-11
B-T magnitude:10.255
V-T magnitude:8.761

Kataloglar ve belirtme:
Özgün isimleri   (Edit)
HD 1989HD 41590
TYCHO-2 2000TYC 3386-583-1
USNO-A2.0USNO-A2 1350-06456794
HIPHIP 29160

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