Asteroid
Mathilde
TypeAsteroid
Mass~1 × 10¹⁷ kg
Diameter53 km
Orbital Radius396 million km
Orbital Period1,575 days
Rotation Period417.7 hours
Known Moons0
Surface Gravity~0.005 m/s²
Average Temp-100 °C
AtmosphereNone
Discovered ByJohann Palisa
Discovery Year1885
About Mathilde
A carbon-black C-type body spinning just once every 17.4 days. NEAR flew past in 1997 on the way to Eros. Its weak gravity suggests a rubble pile interior.
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