376999

376999 is a numbered minor planet of the asteroid belt in the outer part of the main belt. The object was discovered on 5 August 2012 by the Pan‑STARRS 1 survey at the Haleakala Observatory in Hawaii, and was given the provisional designation 2012 EN9 before receiving its permanent number. Its orbit is fairly typical of the middle asteroid belt, with a semi‑major axis of approximately 2.8 astronomical units, an eccentricity near 0.12 and an inclination of about 5 degrees with respect to the ecliptic. 376999 has a calculated orbital period of roughly 4.2 years and does not cross the orbit of any planet, so it poses no threat to Earth.

The diameter of 376999 is estimated to be around 3 kilometers, based on a typical albedo of 0.15 for stony asteroids in its region. Detailed compositional data are not yet available, but photometric observations suggest it has a primitive, S‑type spectrum common to many main‑belt asteroids. The official naming status for the asteroid remains incomplete; it is still listed by the Minor Planet Center simply as (376999). The object is occasionally used in dynamical studies of the asteroid belt, helping astronomers to understand the distribution and evolution of minor planets in this part of the Solar System.