Ultima

E532524

Ultima is the informal nickname given to the larger of the two lobes of the contact binary Kuiper Belt object 486958 Arrokoth, visited by NASA’s New Horizons spacecraft.

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Statements (29)

Predicate Object
instanceOf Kuiper Belt object lobe
astronomical object component
bodyType cold classical Kuiper Belt object lobe
componentOf contact binary 486958 Arrokoth NERFINISHED
connectedTo Thule NERFINISHED
connectionType narrow neck
discoveredAsPartOf 486958 Arrokoth NERFINISHED
distanceFromSunAtFlyby ~43 AU
flybyDate 2019-01-01
flybyMission New Horizons NERFINISHED
formalNameOfSystem 486958 Arrokoth NERFINISHED
formationScenario gentle merger of two primordial planetesimals
hasNicknameFor larger lobe of 486958 Arrokoth
locatedIn Kuiper Belt NERFINISHED
namedBy New Horizons science team NERFINISHED
namingStatus informal nickname
observedBy New Horizons NERFINISHED
orbitalRegion trans-Neptunian region
partOf 486958 Arrokoth NERFINISHED
previousSystemNickname 2014 MU69
Ultima Thule NERFINISHED
relativeSize larger lobe of Arrokoth
rotationSharedWith 486958 Arrokoth NERFINISHED
rotationState tidally locked within contact binary
shape roughly spherical
surfaceColor reddish
surfaceComposition complex organic materials (tholins)
surfaceFeatures bright spots
depressed regions

Referenced by (1)

Full triples — surface form annotated when it differs from this entity's canonical label.

Kuiper Belt object Arrokoth largerLobeNickname Ultima
subject surface form: Arrokoth