Leto (
minor planet designation
A formal minor-planet designation is, in its final form, a number–name combination given to a minor planet (asteroid, centaur, trans-Neptunian object and dwarf planet but not comet). Such designation always features a leading number (catalog or ...
: 68 Leto) is a large
main belt
The asteroid belt is a torus-shaped region in the Solar System, located roughly between the orbits of the planets Jupiter and Mars. It contains a great many solid, irregularly shaped bodies, of many sizes, but much smaller than planets, called ...
asteroid
An asteroid is a minor planet of the inner Solar System. Sizes and shapes of asteroids vary significantly, ranging from 1-meter rocks to a dwarf planet almost 1000 km in diameter; they are rocky, metallic or icy bodies with no atmosphere.
...
that is orbiting the
Sun
The Sun is the star at the center of the Solar System. It is a nearly perfect ball of hot plasma, heated to incandescence by nuclear fusion reactions in its core. The Sun radiates this energy mainly as light, ultraviolet, and infrared radi ...
with a period of 4.64 years. Its spectral type is
S, suggesting a stony,
silicate
In chemistry, a silicate is any member of a family of polyatomic anions consisting of silicon and oxygen, usually with the general formula , where . The family includes orthosilicate (), metasilicate (), and pyrosilicate (, ). The name is al ...
composition. The asteroid was discovered by German astronomer
Robert Luther
Karl Theodor Robert Luther (April 16, 1822, Świdnica – February 15, 1900 Düsseldorf), normally published as Robert Luther, was a German astronomer. While working at the Bilk Observatory in Düsseldorf, Germany, he searched for asteroids and ...
on April 29, 1861, and is named after
Leto
In ancient Greek mythology and Ancient Greek religion, religion, Leto (; grc-gre, Λητώ , ''Lētṓ'', or , ''Lātṓ'' in Ancient Greek dialects#Provenance, Doric Greek) is a goddess and the mother of Apollo, the god of music, and Artemis ...
, the mother of
Apollo
Apollo, grc, Ἀπόλλωνος, Apóllōnos, label=genitive , ; , grc-dor, Ἀπέλλων, Apéllōn, ; grc, Ἀπείλων, Apeílōn, label=Arcadocypriot Greek, ; grc-aeo, Ἄπλουν, Áploun, la, Apollō, la, Apollinis, label= ...
and
Artemis
In ancient Greek mythology and religion, Artemis (; grc-gre, Ἄρτεμις) is the goddess of the hunt, the wilderness, wild animals, nature, vegetation, childbirth, care of children, and chastity. She was heavily identified wit ...
in
Greek mythology
A major branch of classical mythology, Greek mythology is the body of myths originally told by the Ancient Greece, ancient Greeks, and a genre of Ancient Greek folklore. These stories concern the Cosmogony, origin and Cosmology#Metaphysical co ...
. It has an estimated cross-sectional size of 123 km and a
rotation period
The rotation period of a celestial object (e.g., star, gas giant, planet, moon, asteroid) may refer to its sidereal rotation period, i.e. the time that the object takes to complete a single revolution around its axis of rotation relative to the ...
of 14.8 hours.
References
External links
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Background asteroids
Leto
In ancient Greek mythology and Ancient Greek religion, religion, Leto (; grc-gre, Λητώ , ''Lētṓ'', or , ''Lātṓ'' in Ancient Greek dialects#Provenance, Doric Greek) is a goddess and the mother of Apollo, the god of music, and Artemis ...
Leto
Leto
In ancient Greek mythology and Ancient Greek religion, religion, Leto (; grc-gre, Λητώ , ''Lētṓ'', or , ''Lātṓ'' in Ancient Greek dialects#Provenance, Doric Greek) is a goddess and the mother of Apollo, the god of music, and Artemis ...
S-type asteroids (Tholen)
18610429
{{S-beltasteroid-stub