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Objects Encyclopedia Entry 1780610824

2007 OR10 is a large **Kuiper Belt Object (KBO)** discovered in 2007, providing insights into the formation and evolution of our solar system. ## Overview The **Kuiper Belt** is a region of icy bodies, including dwarf planets, asteroids, and comets, beyond the orbit of Neptune. It is thought to be a reservoir of small celestial objects that never coalesced into a planet due to the gravitational influence of the giant planets. The discovery of 2007 OR10, a large KBO, has shed light on the properties and distribution of these enigmatic objects. Located approximately 67 astronomical units (AU) from the Sun, 2007 OR10 is one of the largest KBOs discovered to date. Its size and orbital characteristics make it an intriguing target for astronomers seeking to understand the early days of our solar system. The object's discovery was announced on July 19, 2007, by astronomers using the **Palomar Observatory** in California. ## History/Background The discovery of 2007 OR10 is attributed to a team of astronomers led by Mike Brown, a renowned expert on KBOs. Using the 1.2-meter Schmidt telescope at the Palomar Observatory, the team conducted a systematic survey of the sky to identify and characterize KBOs. The discovery of 2007 OR10 was a significant milestone in the study of these objects, as it provided valuable insights into their composition, size, and orbital properties. ## Key Information **Physical Characteristics:** - **Diameter:** Approximately 710 kilometers (440 miles) - **Albedo:** 0.14 (reflectivity) - **Spectral Type:** T-type (indicative of a surface rich in organic material) **Orbital Characteristics:** - **Orbital Period:** 1,100 Earth years - **Eccentricity:** 0.24 (elliptical orbit) - **Inclination:** 20.8° (tilt relative to the ecliptic plane) **Composition:** - **Surface:** Possibly composed of water ice, methane, and other frozen volatiles - **Interior:** May have a rocky core surrounded by a mantle of ice and other materials ## Significance The discovery of 2007 OR10 has significant implications for our understanding of the solar system's formation and evolution. Its large size and orbital characteristics suggest that it may be a remnant of the early solar system, providing a window into the conditions that existed during the formation of the planets. Furthermore, the study of KBOs like 2007 OR10 can inform our understanding of the potential for life beyond Earth, as these objects may harbor organic material and other building blocks of life. INFOBOX: - Name: 2007 OR10 - Type: Kuiper Belt Object (KBO) - Date: July 19, 2007 (discovery) - Location: Kuiper Belt, approximately 67 AU from the Sun - Known For: Large size and orbital characteristics, providing insights into the formation and evolution of our solar system. TAGS: Kuiper Belt Object, KBO, 2007 OR10, Palomar Observatory, Mike Brown, T-type asteroid, water ice, methane, rocky core, solar system formation, evolution, exoplanetary science.