Ryugu
162173 Ryugu (1999 JU3)
🚀 Visited by spacecraft⚠️ Potentially hazardous
📋 A written introduction is coming — for now this page shows official values only.
Physical data
- Diameter
- 0.896 km
- Rotation period
- 7.6326 hours
- Albedo
- 0.045
- Absolute magnitude H
- 19.55 mag
- Spectral type (SMASS)
- Cb
Orbit
- Orbit class (JPL)
- APO — Apollo
- Semi-major axis
- 1.19 AU
- Eccentricity
- 0.191
- Inclination
- 5.87°
- Perihelion distance
- 0.963 AU
- Aphelion distance
- 1.42 AU
- Orbital period
- 475 days
- Perihelion passage
- JD 2461118.296
- Earth MOID
- 0.000539 AU
Earth approach
- Potentially hazardous (PHA)
- Yes
- Near-Earth object (NEO)
- Yes
In everyday life
- About 896 m across — 0.2% of the 400 km Seoul–Busan expressway.
- One orbit takes about 475 Earth days (about 1.3 years).
- NASA JPL lists it as a potentially hazardous asteroid — its orbit comes within 80,633 km of Earth's (MOID 0.000539 AU).
Worked out from this object's official values.