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Kuiper Belt object

Arrokoth

Semi-major axis44.1 AU
Eccentricity0.036
Flyby1 Jan 2019, New Horizons
Rotation15.9 h

The most distant and most primitive object ever explored by a spacecraft.

Arrokoth is Powhatan/Algonquian for "sky". It is a double-lobed "snowman" first imaged up close by New Horizons.

Sources

  1. NASA Science, Arrokoth
  2. JPL Small-Body Database (orbital elements, physical parameters)
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