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Beyond Jupiter - The World of Distant Minor Planets FOCUS (121725) Aphidas
JOA 2026, Vol. 16, No. 1, Page 29 Author(s): Konrad GuhlAbstract: The inactive Centaur object (121725) Aphidas was discovered in 1999 not far from aphelion orbiting the Sun every 76 years. The elliptical orbit has its perihelion inside the orbit of Saturn and aphelion just inside the orbit of Neptune. Its diameter is around 50 to 110 km. Since discovery, the object has remained very distant and is not yet expected to exhibit cometary activity, nor have any satellites been found.