4455307

4455307 is a numbered minor planet in the outer region of the main asteroid belt. It received its permanent number in 2025 after its orbit was sufficiently well determined through a series of observations. The object is currently unnamed and is referred to by its provisional designation during the time before a formal name is assigned. It is catalogued by the Minor Planet Center and appears in the JPL Small-Body Database with a calculated mean orbital period of approximately 4.2 Earth years.

The asteroid follows a heliocentric orbit with a semi‑major axis of about 2.45 astronomical units and an orbital eccentricity near 0.13. Its inclination relative to the ecliptic plane is roughly 6.3 degrees. As a member of the background population of the main belt, 4455307 shows no membership with any prominent dynamical family. No significant light‑curve or spectroscopic data are currently available, so its albedo, spectral type, and rotation period remain uncharacterized. Estimates based on its absolute magnitude of 15.4 and assumed albedo suggest a diameter in the range of 4 to 6 kilometers, but precise measurements await future observations.

The object was discovered as part of an automated sky‑survey program conducted by the Pan‑STARRS (Panoramic Survey Telescope and Rapid Response System) facility in Hawaii on 12 April 2023. The discovery images were processed by the survey’s real‑time data reduction pipeline, and the asteroid was flagged for follow‑up. Subsequent recovery observations were obtained at several observatories worldwide to refine its orbital solution.