Kuiper Belt Object
Arrokoth
TypeKuiper Belt Object
Mass~1 × 10¹⁵ kg
Diameter36 km
Orbital Radius6,670 million km
Orbital Period108,845 days
Rotation Period15.9 hours
Known Moons0
Surface Gravity~0.001 m/s²
Average Temp-230 °C
AtmosphereNone
Discovered ByMarc Buie
Discovery Year2014
About Arrokoth
The farthest world ever explored, buzzed by New Horizons on New Year Day 2019. Two soft lobes that drifted together 4.5 billion years ago. Its pristine surface rewrote ideas about how planets form.
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