Comet
Helfenzrieder
D/1766 G1 (Helfenzrieder)
Where is it now
- Distance from Sun
- 3.161 AU
- True anomaly
- 205.87°
- 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
- 2.665 AU
- Eccentricity
- 0.8476
- Inclination
- 7.87°
- Orbital period
- 4.35 years
- Perihelion
- 0.406 AU
- Aphelion
- 4.923 AU
- Longitude of ascending node
- 76.26°
- Argument of periapsis
- 178.7°
- Epoch · J2000
- JD 2366195.40900 (perihelion)
Visual & observation
- Spectral type
- JFc
Sources
- orbital elements: JPL SBDB (comets)