Comet
Tempel
9P/Tempel 1
Where is it now
- Distance from Sun
- 3.401 AU
- True anomaly
- 231.79°
- As of
- 29 August 2026
Two-body Kepler propagation — accurate to ~0.1% for major planets over decades, less so for highly-perturbed bodies. Use JPL Horizons for high precision.
Orbital elements
- Semi-major axis
- 3.146 AU
- Eccentricity
- 0.5097
- Inclination
- 10.47°
- Orbital period
- 5.58 years
- Perihelion
- 1.543 AU
- Aphelion
- 4.75 AU
- Longitude of ascending node
- 68.75°
- Argument of periapsis
- 179.2°
- Epoch · J2000
- JD 2457603.07072 (perihelion)
Visual & observation
- Absolute magnitude (H)
- 12.9
- Spectral type
- JFc
Sources
- orbital elements: JPL SBDB (comets)