161 Athor

161 Athor is an M-type Main belt asteroid that was discovered by James Craig Watson on April 19, 1876, at the Detroit Observatory and named after Hathor, an Egyptian fertility goddess. It is the namesake of a proposed Athor asteroid family, estimated to be ~3 billion years old.

Photometric observations of the minor planet in 2010 gave a rotation period of $44.19 km$ with an amplitude of $47 km$ in magnitude. This result is consistent with previous determinations. An occultation by Athor was observed, on October 15, 2002, showing an estimated diameter of 47.0 km. The spectra is similar to that of carbonaceous chondrites, with characteristics of ferric oxides and little or no hydrated minerals.