Carlos H. Veiga et al. 2003 The Astronomical Journal 125 2714 doi:10.1086/374363
Positions of Uranus and Its Main Satellites*
FREE ISSUECarlos H. Veiga1, Roberto Vieira Martins1 and Alexandre H. Andrei1
Show affiliationsWe present astrometric positions of Uranus and its satellites Miranda, Ariel, Umbriel, Titania, and Oberon, determined in the International Celestial Reference System, from 1758 frames observed over 105 nights between 1982 and 1998. All the positions of the satellites were reduced using secondary frames referred to the Tycho-2 Catalogue from photographic plates and CCD frames obtained with the 1.6 m reflector at the Laboratório Nacional de Astrofísica in Brazil. The images of Uranus were overexposed and thus not were measured in the frames. Its positions were instead calculated from the satellites, with the exception of Miranda, using their differential positions as given by the ephemeris GUST86. The positions of the planet were compared with the planetary ephemeris DE403, and the residuals have a mean and standard deviation, respectively, of -0
09 and 014 for (O-C)α and -001 and 015 for (O-C)δ. The results are similar for the satellites.
- Footnote
- Keywords
astrometry; planets and satellites: individual (Ariel, Miranda, Oberon, Titania, Umbriel, Uranus)
- Dates
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Issue 5 (2003 May)
Received 2002 November 25, accepted for publication 2003 January 24
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Positions of Uranus and Its Main Satellites
Carlos H. Veiga et al. 2003 The Astronomical Journal 125 2714
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