Comet
Sheppard
P/2021 R8 (Sheppard)
Where is it now
- Distance from Sun
- 2.279 AU
- True anomaly
- 315.56°
- 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
- 3.019 AU
- Eccentricity
- 0.294
- Inclination
- 2.2°
- Orbital period
- 5.24 years
- Perihelion
- 2.131 AU
- Aphelion
- 3.906 AU
- Longitude of ascending node
- 167.03°
- Argument of periapsis
- 190.79°
- Epoch · J2000
- JD 2459495.01477 (perihelion)
Visual & observation
- Absolute magnitude (H)
- 18.6
- Spectral type
- ETc
Sources
- orbital elements: JPL SBDB (comets)