Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010dps....42.0701p&link_type=abstract
American Astronomical Society, DPS meeting #42, #7.01; Bulletin of the American Astronomical Society, Vol. 42, p.953
Astronomy and Astrophysics
Astronomy
Scientific paper
The method of stellar occultation is a powerful way to investigate objects in the outer solar system, including their sizes, their shapes, their atmospheres, and, when present, rings. Following series of observations of outer-solar-system objects, including the dwarf planets Pluto and Haumea, satellites Charon and Nix, additional Kuiper-belt object 55636, and Triton, we have prepared web pages at Williams College describing the results and linking published papers and meeting abstracts as well as light curves, images, and expedition photographs. Brown's pages at Caltech (www.gps.caltech.edu/ mbrown/2003EL61/) discuss the mutual occultation and transit events of Haumea and its moon Namaka, showing predictions over the last couple of years, though no observations of the mutual events (from the Hale 5-m telescope at the Palomar Observatory on down) have yet been successful. This paper will include Haumea/Namaka predictions for the coming observation season. The MIT Planetary Astronomy Lab's web pages (occult.mit.edu) are more technical in nature, providing information useful for planning observations, which are usually made simultaneously with multiple telescopes to provide a variety of chords across the objects. For overall access to our occultation information, go to http://www.stellaroccultations.info or http://www.williams.edu/Astronomy/research/occultations.
Observations have been supported in part by grants NNX08AO50G to Williams College, NNX10AB27G to MIT, and NNG05GI02G to Caltech from NASA's Planetary Astronomy Division. Student participation was supported in part by NASA's Massachusetts Space Grant.
Brown Michael E.
Pasachoff Jay. M.
Person Michael J.
Tam H. Ng Y.
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