Space applications at the crossroads - Twenty five years of planetary astronomy

Details Space applications at the crossroads - Twenty five years of planetary astronomy Space applications at the crossroads - Twenty five years of planetary astronomy

Mar 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983tfyp.book...25b&link_type=abstract

American Astronautical Society, Goddard Memorial Symposium, 21st, Greenbelt, MD, Mar. 24, 25, 1983. 21 p.

Astronomy and Astrophysics

Astronomy

Interplanetary Spacecraft, Planetology, Space Probes, Spaceborne Astronomy, Comets, Hubble Space Telescope, Planetary Atmospheres, Satellite Atmospheres, Saturn Rings, Voyager Project

Scientific paper

Planetary scientific data gained through satellite instrumentation are examined, noting the rapid increase in the data base during the second half of the 20th century. Voyager 1 imagery of Saturn had 100 times the resolution of ground-based devices, and Voyager 2 photopolarimeter scans revealed the presence of primeval waves within the Saturn ring system. Voyager 1 UV spectrometer readings exposed the presence of the Io torus, which displayed a wide variation in temperature and density, as well as EUV radiation, when again viewed with the Voyager 2 equipment. Further measurements will be made with the Galileo UV spectrometer in the 1988-1990 time period, and by the Space Telescope and FUV Spectroscopic Explorer (FUSE). Spacecraft observations of the Mars and Venus upper atmospheres have defined thermal escape mechanisms for H2 atoms and ions. Titan's nitrogen-rich atmosphere has been characterized, as have the emissions from cometary heads, with both types of studies performed with spacecraft instrumentation. Longer term observations of the planets will be made possible with the Space Telescope.

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