Research in planetary astronomy and operation of the 2.2-meter telescope

Details Research in planetary astronomy and operation of the 2.2-meter telescope Research in planetary astronomy and operation of the 2.2-meter telescope

Sep 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986plas.rept...28h&link_type=abstract

In NASA, Washington Reports of Planetary Astronomy, 1985 p 28-31 (SEE N87-12407 03-89)

Astronomy and Astrophysics

Astronomy

Astronomical Photometry, Infrared Astronomy, Planetary Atmospheres, Planetary Surfaces, Telescopes, Charon, Europa, Io, Pluto (Planet), Space Exploration, Triton

Scientific paper

The turn-around in the secular change in brightness of Pluto was detected, the planet is now beginning to brighten. The spectral signature was found of an ammonia bearing compound in the surface ices of Europa. Specific Io volcanic hotspots were detected from infrared photometry of the mutual events of the Jovian satellites. The polarized emission from the volcanic hotspots on Io was discovered and the locations of those hotspots were determined. The orbit of Charon was refined from speckle observations of the Pluto-Charon system. The spectral properties of liquid nitrogen-methane mixtures with reference to the infrared spectrum of Triton were studied. Major progress was made in modeling asteroid lightcurves from a modern theory of photometric properties of the asteroid surfaces. Several additional olivine-rich asteroids from near-infrared spectrophotometry were discovered. Important photometric, spectroscopic, narrow-band imaging data on Comet P/Halley was acquired, along with Schmidt photographs of Comet P/Halley and its tail.

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