Search for systematic effects in photographic measurements of visual binaries.
Abstract
Photographic plates (265) of selected visual double stars obtained by means of the 105 cm astrometric reflector of the Astronomical Observatory of Torino have been taken during 1984. 118 visual double stars of this series of observations (the 7th) have been measured twice by two persons using two different measuring machines. In this paper the single measures of the polar coordinates for each person and the average values obtained combining the two types of measures are reported. An analysis of the systematic errors due to the two systems of measurement and considerations about the type of motion of each binary are given.
- Publication:
-
Astronomy and Astrophysics Supplement Series
- Pub Date:
- March 1987
- Bibcode:
- 1987A&AS...68..481M
- Keywords:
-
- Astrometry;
- Astronomical Catalogs;
- Astronomical Photography;
- Binary Stars;
- Visible Spectrum;
- Error Analysis;
- Polar Coordinates;
- Astronomy