Mercury (planet)
Mercury is one of four terrestrial planets in the Solar System, and is a rocky body like Earth. It is the smallest planet in the Solar System, with an equatorial radius of . Mercury is also smaller—albeit more massive—than the largest natural satellites in the Solar System, Ganymede and Titan. Mercury consists of approximately 70% metallic and 30% silicate material. Mercury's density is the second highest in the Solar System at 5.427 g/cm, only slightly less than Earth's density of 5.515 g/cm. If the effect of gravitational compression were to be factored out from both planets, the materials of which Mercury is made would be denser than those of Earth, with an uncompressed density of 5.3 g/cm versus Earth's 4.4 g/cm.
UESAC
The Minor Planet Center credits UESAC with the discovery of 1123 numbered minor planets. The discoveries range from the lowest numbered discovery, 6102 Visby, to the currently highest numbered body, . The given total also including and , which were separately credited to "Comets UESAC", while all other discoveries were credited to "UESAC". More minor planets may yet to be numbered and added to this list as their orbits are confirmed.