Asteroid 13475, Orestes, was discovered on September 19, 1973 by C. J. van Houten and Ingrid van Houten-Groeneveld on photographic plates taken by Tom Gehrels at Palomar Observatory near Pauma Valley, California. It has a period of 11 years, 294 days.

It was named for a fairly well-known figure of Greek mythology: Orestes, son of Agamemnon, scion of the ill-fated House of Atreus, who lifted the curse from his family at a terrible cost to himself. He was a boy when his father was murdered by his mother Clytemnestra and her boyfriend Aegisthus upon his return from Troy; Orestes killed them both to avenge his father and was then persecuted by the Furies until the gods granted him absolution. He, and his good friend and cousin Pylades, also retrieved his sister Iphigenia from Tauris (now known as the Crimea, part of Ukraine), where Artemis had transported her instead of allowing Agamemnon to sacrifice her.

Orestes Pursued By The Furies an 1862 painting by French artist William-Adolphe Bouguereau

Astrologically, asteroid Orestes seems to indicate releasing toxins from something by working through it, dealing with a situation at a cost to oneself, a no-win situation, possibly finding long-lost relatives; being punished for what one had to do.

The glyph for Orestes is mine.

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