EDP Sciences
Free access
Issue
A&A
Volume 378, Number 3, November II 2001
Page(s) 954 - 957
Section Formation, structure and evolution of stars
DOI http://dx.doi.org/10.1051/0004-6361:20011260


A&A 378, 954-957 (2001)
DOI: 10.1051/0004-6361:20011260

CCD measurements of visual double stars made with the 74 cm and 50 cm refractors of the Nice Observatory (2nd series)

R. Gili1, 2 and D. Bonneau1

1  Observatoire de la Côte d'Azur, Département Fresnel, BP 229, 06304 Nice Cedex, France
    e-mail: daniel.bonneau@obs-azur.fr
2  161 Av. Ste Marguerite, Clos Ste Marguerite, 06210 Nice, France

(Received 4 July 2001 / Accepted 5 September 2001 )

Abstract
We present 619 measurements of 606 visual double stars made by CCD imaging from 1996 to 1999 with the 74 cm and 50 cm refractors of the Nice observatory. Angular separation, position angle and magnitude difference are given. Magnitude differences estimated from CCD images are compared with magnitude differences given in the Hipparcos catalog. The residuals in angular separation and position angle are computed for binaries with known orbit.


Key words: astrometry -- binaries: visual

Offprint request: R. Gili, r-gili@infonie.fr

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