Juno
3 Juno (A804 RA)
📋 A written introduction is coming — for now this page shows official values only.
Physical data
- Diameter
- 246.596 km
- Rotation period
- 7.21 hours
- Albedo
- 0.214
- Absolute magnitude H
- 5.19 mag
- Spectral type (Tholen)
- S
- Spectral type (SMASS)
- Sk
Orbit
- Orbit class (JPL)
- MBA — Main-belt Asteroid
- Semi-major axis
- 2.67 AU
- Eccentricity
- 0.256
- Inclination
- 13°
- Perihelion distance
- 1.99 AU
- Aphelion distance
- 3.35 AU
- Orbital period
- 1,590 days
- Perihelion passage
- JD 2461631.297
- Earth MOID
- 1.04 AU
Earth approach
- Potentially hazardous (PHA)
- No
- Near-Earth object (NEO)
- No
In everyday life
- About 247 km across — 61.6% of the 400 km Seoul–Busan expressway.
- One orbit takes about 1,590 Earth days (about 4.4 years).
- Sunlight needs about 22 minutes to reach it on average (semi-major axis 2.7 AU) — versus about 8 min 19 s to Earth.
Worked out from this object's official values.