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TYC 1446-1808-1


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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.

Photoelectric photometry of stars near the north Galactic pole. II
UBV photometric observations of about 700 stars near the north Galacticpole, obtained using single-channel photometers on the 40-cm and 60-cmCassegrain telescopes at Kvistaberg Observatory (during 1976-1983) andthe Spanish International Observatory (during 1984), respectively, aspart of a program including the stars to be observed by the Hipparcosspacecraft, are reported. The data are presented in a series of tablesand briefly characterized.

Further Studies of A-Stars and F-Stars in the Region of the North Galactic Pole - Part Three - a Catalogue of Star Names and Positions
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Mesures d'étoiles doubles faites au réfracteur de 38 cm de l'Observatoire de Nice
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Dades d'Observació i Astrometria

Constel·lació:Coma Berenices
Ascensió Recta:12h46m03.33s
Declinació:+17°15'20.9"
Magnitud Aparent:9.767
Moviment propi RA:-15.9
Moviment propi Dec:-11.2
B-T magnitude:10.483
V-T magnitude:9.827

Catàlegs i designacions:
Noms Propis   (Edit)
TYCHO-2 2000TYC 1446-1808-1
USNO-A2.0USNO-A2 1050-06780030
HIPHIP 62308
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