2239998

2239998 is a notable astronomical object located in the outer reaches of our solar system. It was discovered on October 26, 2007, by astronomers using the Canada-France-Hawaii Telescope. The object is classified as a trans-Neptunian object, meaning it orbits the Sun beyond the planet Neptune. It is also part of the scattered disk, a dynamically unstable region of the solar system that is home to several large and notable objects, including Eris.

2239998 has an estimated diameter of approximately 145 kilometers, making it one of the larger objects in the scattered disk. Its orbit is highly eccentric, with an aphelion (farthest point from the Sun) of about 100 astronomical units (AU) and a perihelion (closest point to the Sun) of around 38 AU. This eccentricity contributes to the dynamical instability of the scattered disk. The object's orbital period is estimated to be around 600 years.

The surface of 2239998 is believed to be covered in a layer of volatile ices, such as methane, nitrogen, and carbon monoxide, which are common in the outer solar system. These ices may be responsible for the object's reddish hue, a characteristic feature of many trans-Neptunian objects. The exact composition of 2239998's surface and interior remains unknown, as no detailed observations or missions have been conducted to study it.

2239998's discovery and subsequent observations have provided valuable insights into the dynamics and composition of the outer solar system. Its large size and eccentric orbit make it an interesting target for future astronomical studies, which could help improve our understanding of the formation and evolution of the solar system.