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The Tycho Project On-Board the Hipparcos Satellite
Published online by Cambridge University Press: 19 July 2016
Abstract
The Hipparcos mission had to be revised because the satellite did not reach the circular geostationary orbit. Observations from the elliptical transfer orbit will be degraded in the sense that good quality observations are expected, but only during less than 50 percent of the total time, and the mission duration will probably be less than 2.5 years. If the mission lasts 12 months a Tycho catalogue is expected containing at least 200 000 stars with typical accuracies of 0.10 arcsec for positions and 0.10 mag for B and V magnitudes.
- Type
- Part 4: Realization and comparison of reference frames
- Information
- Symposium - International Astronomical Union , Volume 141: Inertial Coordinate System on the Sky , 1990 , pp. 307 - 310
- Copyright
- Copyright © Kluwer 1990