C/2013 A1 (Siding Spring)
📋 A written introduction is coming — for now this page shows official values only.
Orbit
- Orbit class (JPL)
- HYP — Hyperbolic Comet
- Semi-major axis
- -16,400 AU
- Eccentricity
- 1
- Inclination
- 129°
- Perihelion distance
- 1.4 AU
- Perihelion passage
- JD 2456955.676
- Earth MOID
- 0.384 AU
Earth approach
- Potentially hazardous (PHA)
- No
- Near-Earth object (NEO)
- No
In everyday life
- At its closest it comes 1.4 AU from the Sun — 1.4 times the Earth–Sun distance.
- Eccentricity 1 — exactly 1 (parabolic), so it passes the Sun once and does not come back.
Worked out from this object's official values.