V and R CCD photometry of visual binaries (Abad+, 2004)

Details V and R CCD photometry of visual binaries (Abad+, 2004) V and R CCD photometry of visual binaries (Abad+, 2004)

Nov 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003ycat..34160811a&link_type=abstract

VizieR On-line Data Catalog: J/A+A/416/811. Originally published in: 2004A&A...416..811A

Astronomy and Astrophysics

Astronomy

Stars: Double And Multiple, Photometry: Ccd

Scientific paper

Table 1 gives relevant data for the visual binaries observed. Observations were carried out over a short period of time, therefore we assign the mean epoch (1998.58) for the totality of data. Data of individual stars are presented as average data with errors, by parameter, when various observations have been calculated, as well as the number of observations involved. Errors corresponding to astrometric relative positions between components are always present. For single observations, parameter fitting errors, specially for dx and dy parameters, have been calculated analysing the chi2 test around the minimum. Following the rules for error propagation, theta and rho errors can be estimated. Then, Table 1 shows single observation errors with an additional significant digit.
When a star does not have known references, we include it in Table 2, where J2000 position and magnitudes are from the USNO-A2.0 catalogue (Monet et al., 1998, Cat. ).
(2 data files).