Astronomy and Astrophysics – Astrophysics
Scientific paper
Sep 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993a%26as..100..517v&link_type=abstract
Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 100, no. 3, p. 517-520.
Astronomy and Astrophysics
Astrophysics
12
Astronomical Photometry, Double Stars, Stellar Magnitude, Astrometry, Instrument Errors, Space Observations (From Earth)
Scientific paper
We present accurate relative positions and instrumental visual (Bessel V) magnitude differences of southern wide star components. The mean accuracy of the angular separation is 0.02 arcsecs, which corresponds to 1.5 micron on the CCD chip, and of magnitude difference 0.007 mag/exposure. The program pairs are targets of the HIPPARCOS mission and they have been observed at least four times in the last 150 yrs.
Dessel van E.
Sinachopoulos Dimitris
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