Asteroid
Psyche
TypeAsteroid
Mass2.72 × 10¹⁹ kg
Diameter226 km
Orbital Radius502 million km
Orbital Period1,828 days
Rotation Period4.2 hours
Known Moons0
Surface Gravity0.14 m/s²
Average Temp-100 °C
AtmosphereNone
Discovered ByAnnibale de Gasparis
Discovery Year1852
About Psyche
A metallic asteroid thought to be the exposed core of a protoplanet. Contains iron, nickel, and possibly gold and platinum worth an estimated $10 quintillion at current market prices. NASA Psyche mission launched in 2023 to study it. Could teach us about planetary cores.
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