Prokne
194 Prokne (A879 FA)
📋 A written introduction is coming — for now this page shows official values only.
Physical data
- Diameter
- 161.667 km
- Rotation period
- 15.679 hours
- Albedo
- 0.057
- Absolute magnitude H
- 7.83 mag
- Spectral type (Tholen)
- C
- Spectral type (SMASS)
- C
Orbit
- Orbit class (JPL)
- MBA — Main-belt Asteroid
- Semi-major axis
- 2.62 AU
- Eccentricity
- 0.237
- Inclination
- 18.5°
- Perihelion distance
- 2 AU
- Aphelion distance
- 3.24 AU
- Orbital period
- 1,550 days
- Perihelion passage
- JD 2460510.735
- Earth MOID
- 0.99 AU
Earth approach
- Potentially hazardous (PHA)
- No
- Near-Earth object (NEO)
- No
In everyday life
- About 162 km across — 40.4% of the 400 km Seoul–Busan expressway.
- One orbit takes about 1,550 Earth days (about 4.2 years).
- Sunlight needs about 22 minutes to reach it on average (semi-major axis 2.6 AU) — versus about 8 min 19 s to Earth.
Worked out from this object's official values.