4708 Polydoros
4708 Polydoros is a Jupiter trojan from the Trojan camp, approximately in diameter. It was discovered on 11 September 1988, by American astronomer Carolyn Shoemaker at the Palomar Observatory in California. The D-type asteroid belongs to the [|80 largest Jupiter trojans] and has a rotation period of 7.5 hours. It was named after the Trojan prince Polydorus, from Greek mythology.
Orbit and classification
Polydoros is a Jovian asteroid located in the Lagrangian point, 60° behind on Jupiter's orbit in the so-called Trojan camp. It is also a non-family asteroid of the Jovian background population.It orbits the Sun at a distance of 4.9–5.6 AU once every 12 years and 1 month. Its orbit has an eccentricity of 0.06 and an inclination of 7° with respect to the ecliptic. The body's observation arc begins with its official discovery observation at Palomar in September 1988.
Physical characteristics
In the SDSS-based taxonomy, Polydoros is a dark D-type asteroid. It has also been characterized as a D-type by Pan-STARRS' survey. Its V–I color index of 0.96 is typical for most larger D-type Jupiter trojans .Rotation period
In August 2011, a rotational lightcurve of Polydoros was obtained from photometric observations by Linda French at the Cerro Tololo Inter-American Observatory in Chile. Lightcurve analysis, however, gave an incorrect rotation period of hours with a brightness variation of 0.25 magnitude.Several subsequent observations during 2014–2018 by Daniel Coley and Robert D. Stephens at the Center for Solar System Studies achieved a good period determination, with the best-rated one from November 2015, which gave a period of hours and an amplitude of 0.17 magnitude.