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The Problem of the HIPPARCOS Reference Frame

Lattanzi, M. G.; Bucciarelli, B.; Bernacca, P. L.

The basic principles of the realization of a fundamental optical reference frame by using space platforms are outlined in the light of the first of such astrometry projects, i.e., the HIPPARCOS mission of the European Space Agency. The available adaptations of these principles, expected to lead to a HIPPARCOS catalog of more than 100,000 star posi…