Lydia family

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A small family of asteroids at a mean distance of about 2.75 AU from the Sun. The family is unusual in that its members are of varying composition. The largest member is the T-class (308) Polyxo, diameter 141 km. The family is named after (110) Lydia, an M-type asteroid, diameter 86 km, discovered in 1870 by the French astronomer Louis Alphonse Nicolas Borrelly (1842–1926). Lydia's orbit has a semimajor axis of 2.734 AU, period 4.52 years, perihelion 2.52 AU, aphelion 2.95 AU, and inclination 6°.0.

Subjects: Astronomy and Astrophysics.

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