Comet
d'Arrest
6P/d'Arrest
Where is it now
- Distance from Sun
- 4.523 AU
- True anomaly
- 212.44°
- 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
- 3.497 AU
- Eccentricity
- 0.6127
- Inclination
- 19.51°
- Orbital period
- 6.54 years
- Perihelion
- 1.355 AU
- Aphelion
- 5.64 AU
- Longitude of ascending node
- 138.94°
- Argument of periapsis
- 178.11°
- Epoch · J2000
- JD 2459475.28929 (perihelion)
Visual & observation
- Absolute magnitude (H)
- 15.9
- Spectral type
- JFc
Sources
- orbital elements: JPL SBDB (comets)