Comet
McNaught
191P/McNaught
Where is it now
- Distance from Sun
- 3.161 AU
- True anomaly
- 259°
- 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
- 3.533 AU
- Eccentricity
- 0.4207
- Inclination
- 8.76°
- Orbital period
- 6.64 years
- Perihelion
- 2.046 AU
- Aphelion
- 5.019 AU
- Longitude of ascending node
- 106.5°
- Argument of periapsis
- 274.21°
- Epoch · J2000
- JD 2454357.11159 (perihelion)
Visual & observation
- Absolute magnitude (H)
- 13.8
- Spectral type
- JFc
Sources
- orbital elements: JPL SBDB (comets)