Comet
Schwassmann-Wachmann
73P/Schwassmann-Wachmann 3-BX
Where is it now
- Distance from Sun
- 4.507 AU
- True anomaly
- 202.79°
- 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
- 3.13 AU
- Eccentricity
- 0.6887
- Inclination
- 11.26°
- Orbital period
- 5.54 years
- Perihelion
- 0.974 AU
- Aphelion
- 5.286 AU
- Longitude of ascending node
- 69.47°
- Argument of periapsis
- 199.38°
- Epoch · J2000
- JD 2459816.82078 (perihelion)
Visual & observation
- Absolute magnitude (H)
- 19.4
- Spectral type
- JFc
Sources
- orbital elements: JPL SBDB (comets)