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Objects Encyclopedia Entry 1783047665

** The **Kuiper Belt Object (KBO) 2007 OR10**, also known as **Eris' cousin**, is a dwarf planet located in the outer reaches of the **Solar System**. ## Overview Deep within the **Kuiper Belt**, a region of icy bodies and small celestial objects beyond the orbit of **Neptune**, lies a fascinating world known as **2007 OR10**. This **Kuiper Belt Object (KBO)**, discovered in 2007 by astronomers at the **Palomar Observatory**, has garnered significant attention due to its unique characteristics and intriguing similarities to **Eris**, a dwarf planet in the same region. **2007 OR10** is a prime example of the vast and mysterious expanse of our **Solar System**, highlighting the importance of continued exploration and research into the outer reaches of our cosmic neighborhood. ## History/Background The discovery of **2007 OR10** was announced on August 18, 2007, by a team of astronomers led by **Michael E. Brown**, a renowned expert in the field of **Kuiper Belt Objects**. Initially, the object was thought to be a **trans-Neptunian object (TNO)**, but subsequent observations revealed its size and orbital characteristics to be more consistent with those of a dwarf planet. **2007 OR10** is estimated to be approximately 1,100 kilometers (680 miles) in diameter, making it one of the largest known **KBOs**. ## Key Information **2007 OR10** is a fascinating world with several notable features. Its surface is thought to be composed primarily of water ice, with possible presence of darker organic material. The object's highly eccentric orbit takes it from a distance of about 45 astronomical units (AU) from the **Sun** to a perihelion of approximately 29 AU. This unusual orbit suggests that **2007 OR10** may have been perturbed by the gravitational influence of **Neptune**, potentially leading to its current configuration. ## Significance The discovery of **2007 OR10** has significant implications for our understanding of the **Solar System**. Its similarities to **Eris** and other **KBOs** highlight the diversity of objects in the outer reaches of our cosmic neighborhood. **2007 OR10** also serves as a reminder of the vastness and complexity of the **Kuiper Belt**, an area that continues to be the subject of ongoing research and exploration. As scientists continue to study this enigmatic world, we may uncover new insights into the formation and evolution of our **Solar System**. INFOBOX: - Name: 2007 OR10 - Type: Kuiper Belt Object (KBO) - Date: August 18, 2007 (discovery) - Location: Kuiper Belt - Known For: Similarities to Eris and other KBOs TAGS: **Kuiper Belt Object**, **Dwarf Planet**, **Solar System**, **Kuiper Belt**, **Eris**, **Trans-Neptunian Object (TNO)**, **Water Ice**, **Organic Material**, **Astronomical Unit (AU)**, **Neptune**