103P/Hartley 2
🚀 Visited by spacecraft
📋 A written introduction is coming — for now this page shows official values only.
Physical data
- Diameter
- 1.6 km
- Rotation period
- 18.1 hours
Orbit
- Orbit class (JPL)
- JFc — Jupiter-family Comet
- Semi-major axis
- 3.48 AU
- Eccentricity
- 0.694
- Inclination
- 13.6°
- Perihelion distance
- 1.06 AU
- Aphelion distance
- 5.89 AU
- Orbital period
- 2,370 days
- Perihelion passage
- JD 2457863.958
- Earth MOID
- 0.0732 AU
Earth approach
- Potentially hazardous (PHA)
- No
- Near-Earth object (NEO)
- Yes
In everyday life
- About 2 km across — 0.4% of the 400 km Seoul–Busan expressway.
- One orbit takes about 2,370 Earth days (about 6.5 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.