- 6688 Donmccarthy
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Donmccarthy Discovery and designationDiscovered by S. J. Bus Discovery site Siding Spring Observatory Discovery date March 2, 1981 DesignationsMPC designation 6688 Alternate name(s) 1981 ER17 Epoch May 14, 2008 Ap 3.6383740 Peri 2.5744682 Eccentricity 0.1712430 Orbital period 1999.8107957 Mean anomaly 102.99759 Inclination 4.82684 Longitude of ascending node 207.68258 Argument of peri 191.01094 Absolute magnitude (H) 12.8 6688 Donmccarthy (1981 ER17) is a main-belt asteroid discovered on March 2, 1981 by S. J. Bus at Siding Spring Observatory in the course of the U.K. Schmidt-Caltech Asteroid Survey.
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