747656

747656 is a numbered minor planet of the Solar System, officially catalogued by the Minor Planet Center. The object was first observed by the Pan‑STARRS survey at the Haleakala Observatory in Hawaii on 3 February 2010, and its discovery image was subsequently confirmed by follow‑up observations at the Mount Lemmon Observatory. The provisional designation was 2010 PH45. After sufficient observations were gathered to determine a reliable orbit, the Minor Planet Center assigned the permanent number 747656 on 12 September 2011.

The orbit of 747656 lies in the Kuiper Belt, the region of the Solar System beyond Neptune that is populated by small icy bodies. Its estimated semi‑major axis is 35.1 astronomical units, with a perihelion of 34.8 AU and an aphelion of 35.4 AU. The orbital period is about 208 years, and the inclination with respect to the ecliptic is 1.5 degrees. The eccentricity is modest at 0.009, indicating a nearly circular path. 747656 is classified as a classical Kuiper Belt object, occupying the so‑called “cold” population that is thought to have formed in situ and remained dynamically undisturbed.

The physical characteristics of 747656 are largely inferred from photometry and thermal measurements. Its absolute magnitude, H, is 6.7, which, assuming a typical albedo of 0.08, yields an estimated diameter of approximately 140 kilometers. Spectroscopic observations suggest a composition dominated by water ice with a possible presence of methanol and other organic-rich ices, typical of cold classical Kuiper Belt bodies.

No formal name has been assigned to 747656, and it remains listed only by its number and provisional designation in the Minor Planet Center catalog. The most recent apparitions have been recorded in 2012, 2017, and 2022, and further observations are planned to refine its orbit and physical parameters. The object is listed in several online databases, including the JPL Small‑Body Database and the MPC’s Sequential Minor-Planet Catalog.