57 Mnemosyne
Encyclopedia
57 Mnemosyne is a large main belt asteroid
. It is an S-type asteroid
in composition
. It was discovered by Robert Luther
on September 22, 1859 from Düsseldorf
. Its name was chosen by Martin Hoek, director of the Utrecht Observatory, in reference to Mnemosyne
, a Titaness
in Greek mythology
.
Asteroid
Asteroids are a class of small Solar System bodies in orbit around the Sun. They have also been called planetoids, especially the larger ones...
. It is an S-type asteroid
S-type asteroid
S-type asteroids are of a stony composition, hence the name. Approximately 17% of asteroids are of this type, making it the second most common after the C-type.-Characteristics:...
in composition
Composition
Composition may refer to:* Composition , in which one assumes that a whole has a property solely because its various parts have that property* Compounding is also known as composition in linguistic literature* in computer science...
. It was discovered by Robert Luther
Karl Theodor Robert Luther
Karl Theodor Robert Luther , normally published as Robert Luther, was a German astronomer who searched for asteroids while working in Düsseldorf....
on September 22, 1859 from Düsseldorf
Düsseldorf
Düsseldorf is the capital city of the German state of North Rhine-Westphalia and centre of the Rhine-Ruhr metropolitan region.Düsseldorf is an important international business and financial centre and renowned for its fashion and trade fairs. Located centrally within the European Megalopolis, the...
. Its name was chosen by Martin Hoek, director of the Utrecht Observatory, in reference to Mnemosyne
Mnemosyne
Mnemosyne , source of the word mnemonic, was the personification of memory in Greek mythology. This titaness was the daughter of Gaia and Uranus and the mother of the nine Muses by Zeus:* Calliope * Clio * Erato...
, a Titaness
Titan (mythology)
In Greek mythology, the Titans were a race of powerful deities, descendants of Gaia and Uranus, that ruled during the legendary Golden Age....
in Greek mythology
Greek mythology
Greek mythology is the body of myths and legends belonging to the ancient Greeks, concerning their gods and heroes, the nature of the world, and the origins and significance of their own cult and ritual practices. They were a part of religion in ancient Greece...
.