000001910 001__ 1910
000001910 005__ 20160701171655.0
000001910 0247_ $$2DOI$$a10.1016/0273-1177(91)90479-4
000001910 037__ $$aASTROimport-67
000001910 100__ $$aLampens, P.
000001910 245__ $$aDouble star CCD astrometry and photometry
000001910 260__ $$c1991
000001910 520__ $$aAbout 3000 CCD measurements of double stars have been made in one or both filters V and R on the 1-m Jacobus Kapteyn Telescope at La Palma. The stars form part of the Input Catalogue of the astrometric satellite HIPPARCOS, and require both astrometry and photometry in order to facilitate reduction of the HIPPARCOS measurements. The primary components of the binaries have visual magnitudes between 8 and 12 mag, and the apparent separations between components range from 0.5 to 30 arcsec. The difference in the separation obtained with the two filters is discussed and illustrated for 2100 systems: the dependence upon separation and magnitude difference between components is clearly and quantitatively shown. 
000001910 700__ $$a Argue, A. N.
000001910 700__ $$a Irwin, M. J.
000001910 773__ $$c119-122$$pAdvances in Space Research$$v11$$y1991
000001910 85642 $$ahttp://esoads.eso.org/abs/1991AdSpR..11..119L
000001910 905__ $$apublished in
000001910 980__ $$aREFERD