12374 Rakhat

Orbit and classification

Rakhat is a non-family asteroid from the main belt's background population. It orbits the Sun in the central main-belt at a distance of 1.8–3.3 AU once every 4 years and 1 month (1,488 days). Its orbit has an eccentricity of 0.31 and an inclination of 9° with respect to the ecliptic.

A first precovery was taken at the discovering Palomar Observatory in November 1954, extending the asteroid's observation arc by 40 years prior to its official discovery observation.

Naming

This minor planet was named "Rakhat" after the fictional planet in the novel The Sparrow by Mary Doria Russell. The novel begins in 2019, when SETI at the Arecibo, picks up radio broadcasts of music from this planet in the vicinity of Alpha Centauri. The first expedition is organized by the Jesuit order, known for its missionary, linguistic and scientific activities. The novel was followed by the sequel Children of God. The approved naming citation was published by the Minor Planet Center on 28 March 2002 (M.P.C. 45234).

Physical characteristics

Rakhat is an assumed common S-type asteroid.

In May 2010, a rotational lightcurve was obtained from photometric observations made astronomers at the Palomar Transient Factory in California. It gave a rotation period of hours with a brightness amplitude of 0.31 in magnitude ().

According to the survey carried out by the NEOWISE mission of NASA's space-based Wide-field Infrared Survey Explorer, the asteroid measures 4.6 kilometers in diameter and its surface has an albedo of 0.21, while the Collaborative Asteroid Lightcurve Link assumes a standard albedo for stony asteroids of 0.20 and calculates a diameter of 4.4 kilometers.

References