Bennu
101955 Bennu (1999 RQ36)
🚀 Visited by spacecraft⚠️ Potentially hazardous
📋 A written introduction is coming — for now this page shows official values only.
Physical data
- Diameter
- 0.48444 km
- Rotation period
- 4.2961 hours
- Albedo
- 0.044
- Absolute magnitude H
- 20.21 mag
- Spectral type (SMASS)
- B
Orbit
- Orbit class (JPL)
- APO — Apollo
- Semi-major axis
- 1.13 AU
- Eccentricity
- 0.204
- Inclination
- 6.03°
- Perihelion distance
- 0.897 AU
- Aphelion distance
- 1.36 AU
- Orbital period
- 437 days
- Perihelion passage
- JD 2455439.142
- Earth MOID
- 0.00322 AU
Earth approach
- Potentially hazardous (PHA)
- Yes
- Near-Earth object (NEO)
- Yes
In everyday life
- About 484 m across — 0.1% of the 400 km Seoul–Busan expressway.
- One orbit takes about 437 Earth days (about 1.2 years).
- NASA JPL lists it as a potentially hazardous asteroid — its orbit comes within 481,705 km of Earth's (MOID 0.00322 AU).