This is a list of named geological features on

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. ...

243 Ida Ida, minor planet designation 243 Ida, is an asteroid in the Koronis family of the asteroid belt. It was discovered on 29 September 1884 by Austrian astronomer Johann Palisa at Vienna Observatory and named after a nymph from Greek mythology. ...

and its moon,

Dactyl Dactyl may refer to: * Dactyl (mythology), a legendary being * Dactyl (poetry), a metrical unit of verse * Dactyl Foundation, an arts organization * Finger, a part of the hand * Dactylus, part of a decapod crustacean * "-dactyl", a suffix used ...

Ida

Regiones

Idaean

regiones ''Regiones'' (singular: ''regio'') or ''provinciae'',(singular: ''provincia''), also referred to by historians as small shires or early folk territories, were early territorial divisions of Anglo-Saxon England, referred to in sources such as Anglo ...

(geologically distinct areas) are named after the discoverer of the asteroid, and the places where he worked.

Dorsa

Craters

Idaean

crater Crater may refer to: Landforms *Impact crater, a depression caused by two celestial bodies impacting each other, such as a meteorite hitting a planet *Explosion crater, a hole formed in the ground produced by an explosion near or below the surfac ...

s are named after famous

cave A cave or cavern is a natural void in the ground, specifically a space large enough for a human to enter. Caves often form by the weathering of rock and often extend deep underground. The word ''cave'' can refer to smaller openings such as sea ...

Dactyl

Dactylian

s are named after the mythological Dactyls.

External links

USGS: Ida nomenclature

USGS: Dactyl nomenclature
{{Surface features of space objects

Ida Ida or IDA may refer to: Astronomy * Ida Facula, a mountain on Amalthea, a moon of Jupiter *243 Ida, an asteroid *International Docking Adapter, a docking adapter for the International Space Station Computing *Intel Dynamic Acceleration, a techn ...

Binary asteroids