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Objects Encyclopedia Entry 1781385245

**Asteroid 16 Psyche** is a metal asteroid located in the **Asteroid Belt**, believed to be the remnant core of a planet that never formed in the early days of the solar system. ## Overview **Asteroid 16 Psyche** is a fascinating and enigmatic object in our solar system, providing scientists with a unique opportunity to study the formation and evolution of planets. This asteroid is estimated to be approximately 130 miles (210 kilometers) in diameter, making it one of the largest objects in the **Asteroid Belt**. **Psyche** was discovered on March 17, 1852, by Italian astronomer Annibale de Gasparis, who named it after the Greek goddess of the soul. **Asteroid 16 Psyche** is a member of a rare class of asteroids known as **M-type asteroids**, characterized by their metallic composition. Unlike most asteroids, which are primarily composed of rock and ice, **Psyche** is thought to be a remnant core of a planet that never formed in the early days of the solar system. This theory suggests that **Psyche** is a fragment of a planetary body that was destroyed or never fully formed due to the gravitational interactions with other objects in the solar system. ## History/Background The discovery of **Asteroid 16 Psyche** in 1852 marked a significant milestone in the study of asteroids. Initially, astronomers believed that **Psyche** was a small, rocky asteroid, but subsequent observations revealed its unique metallic composition. In the late 19th century, astronomers began to suspect that **Psyche** might be a remnant core of a planet, but it wasn't until the 20th century that this theory gained widespread acceptance. ## Key Information **Asteroid 16 Psyche** is a fascinating object that has captured the imagination of scientists and astronomers. Some of the key facts about **Psyche** include: * **Composition:** **Psyche** is composed primarily of iron and nickel, with a small amount of silicate minerals. * **Size:** **Psyche** is estimated to be approximately 130 miles (210 kilometers) in diameter. * **Orbit:** **Psyche** orbits the Sun at an average distance of 2.9 astronomical units (AU). * **Rotation:** **Psyche** has a relatively slow rotation period of 4.26 days. ## Significance **Asteroid 16 Psyche** is a significant object in the study of planetary formation and evolution. By studying **Psyche**, scientists can gain insights into the early days of the solar system and the processes that shaped the formation of planets. **Psyche** also offers a unique opportunity to study the internal structure of a planetary body, providing valuable information about the composition and evolution of the solar system. INFOBOX: - Name: **Asteroid 16 Psyche** - Type: **M-type asteroid** - Date: **March 17, 1852** (discovery) - Location: **Asteroid Belt** - Known For: **Remnant core of a planet** TAGS: **Asteroid Belt, M-type asteroid, planetary formation, solar system, asteroid, Psyche, Annibale de Gasparis, metal asteroid**