Halley's Comet as an outstanding target

Details Halley's Comet as an outstanding target Halley's Comet as an outstanding target

Mar 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986esasp1066.....r&link_type=abstract

In ESA Space Missions to Halley's Comet p vii-xvi (SEE N86-32452 24-12)

Astronomy and Astrophysics

Astronomy

1

Giotto Mission, Halley'S Comet, Spaceborne Astronomy, Comet Heads, Comet Nuclei, Comet Tails, Cometary Atmospheres, Mission Planning

Scientific paper

Among more than 1000 known comets, Halley is the most outstanding target for a cometary mission as it is the only comet that has a well-known orbit and a high gas and dust production rate, comparable to that of new comets. A mission to Halley requires very little launch energy and the comet can also be observed from the Earth during the flybys. Because of its predictability and brightness Halley is also the most famous comet. For all of these reasons, Halley was selected as the target for the first cometary mission. Between 6 and 14 March 1986, five spacecraft from three space agencies will fly through the coma of Halley's comet. The encounters all take place in March 1986 because the launch energy required for these post-perihelion encounters is minimal and in March, four weeks after its perihelion passage, Halley will be at its most active, displaying all known cometary phenomena.

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