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RECTANGULAR COORDINATES OF MERCURY 1800-2000,
NAVAL OBSERVATORY WASHINGTON D C
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The rectangular heliocentric equatorial coordinates in this circular are intended chiefly for use in the numerical integration of orbits of celestial bodies, natural or artificial, which approach closely to Mercury. They are referred to the mean equinox and equator of 1950.0. They have been calculated from Newcombs general theory of the motion of Mercury Astronomical Papers prepared for the use of the American Ephemeris and Nautical Almanac, volume VI, 1898, and are tabulated for every second day from J. D. 237 8492.5 to J. D. 245 2048.5. Author
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