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Stellar Occultation Studies of Pluto, Triton, Charon, and Chiron

Author
Elliot, James L.
Published
Mar. 18, 2002.
Physical Description
1 electronic document
Online Version

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Summary
Bodies inhabiting the outer solar system are of interest because, due to the colder conditions, they exhibit unique physical processes. Also, some of the lessons learned from them can be applied to understanding what occurred in the outer solar system during its formation and early evolution. The thin atmospheres of Pluto and Triton have structure that is not yet understood, and they have been predicted to undergo cataclysmic seasonal changes. Charon may have an atmosphere - we don't know. Chiron exhibits cometary activity so far from the sun (much further than most comets), so that H2O sublimation cannot be the driving mechanism. Probing these bodies from Earth with a spatial resolution of a few kilometers can be accomplished only with the stellar occultation technique. In this program we find and predict stellar occultation events by small outer-solar system bodies and then attempt observations of the ones that can potentially answer interesting questions. We also develop new methods of data analysis for occultations and secure other observations that are necessary for interpretation of the occultation data.
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Collection
NASA Technical Reports Server (NTRS) Collection.
Note
Document ID: 20020046993.
Terms of Use and Reproduction
No Copyright.
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