VizieR Online Data Catalog: VRIZJHK photometry around Alpha Cen (Kervella+, 2007)

table1.dat lists the background sources identified on deep CCD images of the close environment of Alpha Centauri (up to approximately 2.5'). Our VRIZ photometry has been complemented by JHK photometry extracted from the corresponding 2MASS images (Skrutskie et al., 2006AJ....131.1163S). This catalogue is particularly intended to provide a reference for future searches for faint companions of Alpha Centauri. Unavailable values are replaced by 99.00 in the table.

We have revised the coordinates of the catalogue published in 2007. They are now much more consistent with reference astrometric catalogues such as 2MASS (Cat. II/246). There was a shift of typically 2 arcseconds between the 2MASS and SUSI2 coordinates, and now this is reduced to less than 0.5 arcsecond.

We have also recomputed the photometric magnitudes using more accurate aperture corrections and instrument zero points

The new version of the table is available on 13-Jun-2016, in place of the old one, in Vizier.

(1 data file).