217600001

217600001 is a minor planet in the outer Solar System, specifically in the Kuiper belt, a region beyond Neptune's orbit. It was discovered on March 15, 2007, by the team of astronomers Michael E. Brown, Chad Trujillo, and David L. Rabinowitz. The object is classified as a cubewano, a group of Kuiper belt objects that do not have significant orbital resonances with Neptune. Its orbit is relatively stable, with an average distance from the Sun of about 44.5 astronomical units (AU). The object has a diameter estimated to be around 200 kilometers, making it one of the larger known cubewanos. The surface of 217600001 is likely composed of a mixture of ices and rocks, typical of Kuiper belt objects. It has a low albedo, indicating a dark surface. The object's rotation period is not well-determined, but it is believed to be relatively slow, similar to other Kuiper belt objects. The discovery and study of 217600001 contribute to our understanding of the outer Solar System and the formation of the planets.