423 Diotima is one of the larger

main-belt The asteroid belt is a torus-shaped region in the Solar System, centered on the Sun and roughly spanning the space between the orbits of the planets Jupiter and Mars. It contains a great many solid, irregularly shaped bodies called asteroids ...

asteroid An asteroid is a minor planet—an object larger than a meteoroid that is neither a planet nor an identified comet—that orbits within the Solar System#Inner Solar System, inner Solar System or is co-orbital with Jupiter (Trojan asteroids). As ...

s. It is classified as a

C-type asteroid C-type (carbonaceous ) asteroids are the most common variety, forming around 75% of known asteroids. They are volatile-rich and distinguished by a very low albedo because their composition includes a large amount of carbon, in addition to rocks ...

and is probably composed of primitive

carbon Carbon () is a chemical element; it has chemical symbol, symbol C and atomic number 6. It is nonmetallic and tetravalence, tetravalent—meaning that its atoms are able to form up to four covalent bonds due to its valence shell exhibiting 4 ...

aceous material. It was discovered by

Auguste Charlois Auguste Honoré Charlois (; November 26, 1864 – March 26, 1910) was a French astronomer who discovered 99 asteroids while working at the Nice Observatory in southeastern France. Asteroid discovery His first discovery was the asteroid 267 Tirz ...

on 7 December 1896, in

Nice Nice ( ; ) is a city in and the prefecture of the Alpes-Maritimes department in France. The Nice agglomeration extends far beyond the administrative city limits, with a population of nearly one million magnitude Magnitude may refer to: Mathematics *Euclidean vector, a quantity defined by both its magnitude and its direction *Magnitude (mathematics), the relative size of an object *Norm (mathematics), a term for the size or length of a vector *Order of ...

. Dunham (2002) used 15

chords Chord or chords may refer to: Art and music * Chord (music), an aggregate of musical pitches sounded simultaneously ** Guitar chord, a chord played on a guitar, which has a particular tuning * The Chords (British band), 1970s British mod ...

and obtained an estimated size of .

Name

Diotima is named for

Diotima of Mantinea Diotima of Mantinea (; ; ) is the name or pseudonym of an ancient Greek character in Plato's dialogue ''Symposium'', possibly an actual historical figure, indicated as having lived circa 440 B.C. Her ideas and doctrine of ''Eros'' as reported ...

, a priestess who was one of

Socrates Socrates (; ; – 399 BC) was a Ancient Greek philosophy, Greek philosopher from Classical Athens, Athens who is credited as the founder of Western philosophy and as among the first moral philosophers of the Ethics, ethical tradition ...

's teachers. It is one of seven of Charlois's discoveries that was expressly named by the Astromomisches Rechen-Institut (Astronomical Calculation Institute).Schmadel Lutz D. ''Dictionary of Minor Planet Names'' (fifth edition), Springer, 2003. . The name is stressed on the penultimate syllable, , as in Latin ''Diotīma.''

References

External links

* * {{DEFAULTSORT:000423 Background asteroids

Diotima Diotima may refer to: People * Diotima of Mantinea, an ancient female philosopher and tutor of Socrates * Pen-name of Esme Wynn-Tyson, British author. * Pseudonym of Susette Borkenstein Gontard in poetry by Friedrich Hölderlin * Pseudonym of Erm ...

C-type asteroids (Tholen) C-type asteroids (SMASS) 18961207