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3 JUNO
DATA SHEET
asteroid
3 Juno
Discovered 1804-09-01 · Karl Ludwig Harding
One of the larger S-type asteroids
Mean Radius
116.5 km
Gravity
0.12 m/s²
Temperature
163 K (-110°C)
Orbital Period
1592.0 d
Distance
2.669 AU
Physical Properties
Mean Radius
116.5 km
Mass
2.6700 × 10^19 kg
Surface Gravity
0.12 m/s²
Density
3.400 g/cm³
Escape Velocity
0.18 km/s
Mean Temperature
163 K (-110°C)
Axial Tilt
51.00°
Rotation Period
7.21 h
Atmosphere
None
Ring System
None
Orbital Elements (J2000)
Semi-major Axis
2.669200 AU
Eccentricity
0.256410
Inclination
12.9910°
Orbital Period
1592.00 days
Asc. Node (Ω)
169.86200°
Arg. Perihelion (ω)
248.01900°
Mean Anomaly (M₀)
114.33000°
Perihelion
1.986 AU
Aphelion
3.352 AU
3D View
Image Gallery
Data Sources
Physical & orbital data: NASA/JPL Planetary Fact Sheets · Orbital elements: NASA JPL Horizons System (J2000 epoch)