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HD 223090


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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.

Interstellar polarization from observations of A and F stars in high and intermediate galactic latitudes, and from stars in the Mathewson and Ford polarization catalogue
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1986A&AS...64..487K&db_key=AST

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Gözlemler ve gökölçümü verileri

Takýmyýldýz:Anka
Sað Açýklýk:23h46m44.42s
Yükselim:-45°03'27.0"
Görünürdeki Parlaklýk:9.407
Uzaklýk:187.266 parsek
özdevim Sað Açýklýk:46.2
özdevim Yükselim:-10.9
B-T magnitude:9.909
V-T magnitude:9.449

Kataloglar ve belirtme:
Özgün isimleri
HD 1989HD 223090
TYCHO-2 2000TYC 8457-1126-1
USNO-A2.0USNO-A2 0375-40386803
HIPHIP 117269
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