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Objects Encyclopedia Entry 1782109146

** The **Kuiper Belt Object** (KBO) 2007 OR10 is a small, icy world located in the outer reaches of the **Solar System**, providing valuable insights into the formation and evolution of our cosmic neighborhood. ## Overview The **Kuiper Belt** is a region of the **Solar System** extending from the orbit of **Neptune** to a distance of approximately 55 astronomical units (AU) from the **Sun**. This vast, doughnut-shaped zone is home to numerous small, icy bodies, including dwarf planets, asteroids, and comets. One such object is 2007 OR10, a **Kuiper Belt Object** discovered on July 17, 2007, by the **Palomar Observatory** in California, USA. 2007 OR10 is a **trans-Neptunian object** (TNO), meaning it has an orbital path that takes it beyond the orbit of **Neptune**. Its highly eccentric orbit, with a semi-major axis of approximately 43.5 AU, takes it as close as 36.5 AU to the **Sun** and as far as 50.5 AU from the **Sun**. This unusual orbit suggests that 2007 OR10 may have been perturbed from its original path by the gravitational influence of the **Jupiter**-**Saturn** system. ## History/Background The discovery of 2007 OR10 was made possible by the **Palomar Observatory's** 1.2-meter Schmidt telescope, which is equipped with a **charge-coupled device** (CCD) camera. The object was initially detected as a faint, moving point of light on a series of images taken over several nights. Further observations were conducted using the **Hubble Space Telescope** and the **Spitzer Space Telescope**, which provided more detailed information about the object's size, shape, and composition. ## Key Information 2007 OR10 is a small, icy world with a diameter of approximately 600 kilometers (373 miles). Its surface is likely composed of water ice mixed with darker organic material, which may be the result of **cometary** activity. The object's highly reflective surface suggests that it may have a thin layer of **methane** ice, which is a common feature of other **Kuiper Belt Objects**. One of the most interesting aspects of 2007 OR10 is its highly eccentric orbit, which takes it through a region of the **Solar System** known as the **scattered disc**. This region is thought to be the source of many short-period **comets**, which originate from the outer reaches of the **Solar System**. The discovery of 2007 OR10 has provided valuable insights into the formation and evolution of the **Solar System**, particularly in the region beyond the orbit of **Neptune**. ## Significance The discovery of 2007 OR10 has significant implications for our understanding of the **Solar System** and its evolution. The object's highly eccentric orbit and composition provide valuable information about the formation of the **Kuiper Belt** and the origins of **comets**. Furthermore, the study of 2007 OR10 has shed light on the processes that shape the outer reaches of the **Solar System**, including the effects of **Jupiter** and **Saturn** on the orbits of nearby objects. INFOBOX: - **Name:** 2007 OR10 - **Type:** **Kuiper Belt Object** (KBO) - **Date:** July 17, 2007 - **Location:** **Kuiper Belt**, outer reaches of the **Solar System** - **Known For:** Highly eccentric orbit and composition, providing insights into the formation and evolution of the **Solar System** TAGS: **Kuiper Belt**, **Kuiper Belt Objects**, **Trans-Neptunian Objects**, **Solar System**, **Comets**, **Astronomy**, **Astrophysics**, **Space Exploration**, **Planetary Science**