A search for stellar occultations by Uranus, Neptune, Pluto, and their satellites: 1990-1999

Details A search for stellar occultations by Uranus, Neptune, Pluto, and their satellites: 1990-1999 A search for stellar occultations by Uranus, Neptune, Pluto, and their satellites: 1990-1999

Mar 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991sao..rept.....m&link_type=abstract

Final Report, 1 Jan. 1989 - 31 Dec. 1990 Smithsonian Astrophysical Observatory, Cambridge, MA.

Other

Astronomical Catalogs, Natural Satellites, Neptune (Planet), Stellar Occultation, Uranus (Planet), Computer Programs, Ephemerides, Hubble Space Telescope, Saturn (Planet), Stellar Magnitude

Scientific paper

A search for occultations of stars by Uranus, Neptune, and Pluto between 1990 and 1999 was carried out by combining ephemeris information and star positions using very accurate occultation modeling software. Stars from both the Space Telescope Guide Catalog and photographic plates taken by Arnold Klemola at Lick Observatory were compared with planet positions from the JPL DE-130 ephemeris, with local modifications for Pluto and Charon. Some 666 possible occultations by the Uranian ring, 143 possible occultations by Neptune, and 40 possible occultations by Pluto and/or Charon were found among stars with visual magnitudes as faint as 16. Before the star positions could be obtained, the occultation prediction software was used to aid many observers in observing the occultation of 28 Sagitarii by Saturn in July 1989. As a test on other outer solar system objects, 17 possible occultations were found in a search of the Guide Star Catalog for occultations by 2060 Chiron, and interesting object between Saturn and Uranus which shows both cometary and asteroidal properties.

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