18D/Perrine-Mrkos
📋 A written introduction is coming — for now this page shows official values only.
Orbit
- Orbit class (JPL)
- JFc — Jupiter-family Comet
- Semi-major axis
- 3.56 AU
- Eccentricity
- 0.643
- Inclination
- 17.8°
- Perihelion distance
- 1.27 AU
- Aphelion distance
- 5.85 AU
- Orbital period
- 2,450 days
- Perihelion passage
- JD 2440162.042
- Earth MOID
- 0.289 AU
Earth approach
- Potentially hazardous (PHA)
- No
- Near-Earth object (NEO)
- Yes
In everyday life
- One orbit takes about 2,450 Earth days (about 6.7 years).
- Sunlight needs about 30 minutes to reach it on average (semi-major axis 3.6 AU) — versus about 8 min 19 s to Earth.
- At its closest it comes 1.3 AU from the Sun — 1.3 times the Earth–Sun distance.
Worked out from this object's official values.