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Asteroid 532, discovered in 1904 by Max Wolf. Observations of a stellar occultation by Herculina in 1978 indicate the presence of a companion about 50 km wide and 1000 km away. Herculina is elliptical, with a mean diameter of 222 km, and is of S class. Its orbit has a semimajor axis of 2.772 AU, period 4.61 years, perihelion 2.28 AU, aphelion 3.26 AU, and inclination 16°.3.

Subjects: Astronomy and Astrophysics.

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