81P/Wild 2
🚀 Visited by spacecraft
📋 A written introduction is coming — for now this page shows official values only.
Physical data
- Diameter
- 4 km
Orbit
- Orbit class (JPL)
- JFc — Jupiter-family Comet
- Semi-major axis
- 3.45 AU
- Eccentricity
- 0.537
- Inclination
- 3.24°
- Perihelion distance
- 1.6 AU
- Aphelion distance
- 5.3 AU
- Orbital period
- 2,340 days
- Perihelion passage
- JD 2459929.285
- Earth MOID
- 0.602 AU
Earth approach
- Potentially hazardous (PHA)
- No
- Near-Earth object (NEO)
- No
In everyday life
- About 4 km across — 1% of the 400 km Seoul–Busan expressway.
- One orbit takes about 2,340 Earth days (about 6.4 years).
- Sunlight needs about 29 minutes to reach it on average (semi-major axis 3.5 AU) — versus about 8 min 19 s to Earth.
Worked out from this object's official values.