Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986plas.rept...34h&link_type=abstract
In NASA, Washington Reports of Planetary Astronomy, 1985 p 34-35 (SEE N87-12407 03-89)
Astronomy and Astrophysics
Astronomy
Jupiter (Planet), Mercury (Planet), Planetary Atmospheres, Satellite Atmospheres, Spectrum Analysis, Stellar Occultation, Absorption Spectra, Astronomical Spectroscopy, Charge Coupled Devices, Chemical Clouds, Io, Sodium Compounds
Scientific paper
Telescopic observations were made of gases and plasmas in the Jupiter system, and related phenomena such as the recently-discovered sodium atmosphere of Mercury. Sodium absorption in Io's atmosphere was observed to distances as large as 5 Io radii during the mutual-eclipse season of the Jovian satellites. Analysis of Jovian disk spectra has proceeded, as planned, from an emphasis on the H2 ortho-para ratio to analysis of methane absorptions and determination of cloud structure. Several 2-channel photometers were constructed in 1978 for the Uranus event at which the rings were discovered and a smaller, single-channel unit was built more recently. Although the photometers themselves are still fully usable, the data-acquisition systems have major deficiencies.
Brown Robert A.
Hunten Don M.
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