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HD 115720


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Pulkovo compilation of radial velocities for 35495 stars in a common system.
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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.

Spectral and Luminosity Classifications and Measurements of the Strength of Cyanogen Absorption for Late-Type Stars from Objective-Prism Spectra.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1961ApJ...134..809Y&db_key=AST

Mesures d'étoiles doubles faites au réfracteur de 38 cm de l'Observatoire de Nice
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Mesures d'étoiles doubles faites à l'Observatoire de Paris
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Membro dei seguenti gruppi:

Osservazione e dati astrometrici

Costellazione:Orsa Maggiore
Ascensione retta:13h17m44.32s
Declinazione:+58°45'02.0"
Magnitudine apparente:8.048
Distanza:274.725 parsec
Moto proprio RA:0.7
Moto proprio Dec:4.8
B-T magnitude:9.446
V-T magnitude:8.164

Cataloghi e designazioni:
Nomi esatti   (Edit)
HD 1989HD 115720
TYCHO-2 2000TYC 3849-748-1
USNO-A2.0USNO-A2 1425-07933762
HIPHIP 64866
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