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Object profile

Schwassmann-Wachmann 1

29PCentaur
4 occultation events
Best radius (km)
Geometric albedo
4
Events recorded
6 AU
Semi-major axis
Size — to scalevs Pluto
SCHWASSMANN-WACHMANN 1 · R KMPLUTO · R 1188 KM
Schwassmann-Wachmann 1 — this objectPluto — comparison
Best physical propertieslatest event
Radius eq. (km)> —
Equivalent radius (km)
Oblateness
Density (g/cm³)
Albedo (V)
All occultation events4 recorded — newest first
DateChordsObserved fromRadius eq. (km)Feature
2025-02-051Greecedetails →
2023-05-071United Kingdomdetails →
2022-12-194United States of Americadetails →
2022-12-051Chile> 54details →
Orbit — top viewheliocentric
Neptune 30 AU
6
a (AU)
0.042
e
9.4
i (deg)
Class & designation
Number
Provisional designation29P
Dynamical classCentaur
Inclination (deg)9.4
Size (km)
Schwassmann-Wachmann 1 · SOSB / Lucky Star