TAU - The longest voyage

Details TAU - The longest voyage TAU - The longest voyage

Sep 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986spwd....9...13s&link_type=abstract

Space World (ISSN 0038-6332), vol. W-9-273, Sept. 1986, p. 13-16.

Astronomy and Astrophysics

Astronomy

Astrometry, Long Duration Space Flight, Spaceborne Telescopes, Very Long Base Interferometry, Astronomical Maps, Parallax, Radio Astronomy, Radio Interferometers, Spacecraft Communication, Spacecraft Design

Scientific paper

TAU, a concept for a voyage stretching a thousand astronomical units calls for an ion propulsion engine and two telescopes, one for communication and the other for astrometric measurements. After ten years of steady acceleration to 100 km/s, the scientific payload will continue the rest of its 50 years as a free-flying craft. TAU's main objective is to obtain direct measurements of distances, both stellar and galactic; it will offer a baseline that is 500 times longer than that of Hipparcos.

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