(1803) Zwicky Main-belt Asteroid
Discovered on 6 February 1967 by P. Wild at Zimmerwald.
Where Zwicky is today
Seen from above the solar system on 2026-10-14: Zwicky is 2.87 au from the Sun and 1.95 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 1803 |
| Provisional designation | 1967 CA |
| Orbit class | Main-belt Asteroid |
| Diameter | 9.93 km (#5,139 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.259 |
| Rotation period | 2.73 hours |
| Absolute magnitude (H) | 12.25 |
| Orbital period | 3.60 years |
| Semi-major axis | 2.35 au |
| Perihelion – aphelion | 1.76 – 2.93 au |
| Eccentricity | 0.249 |
| Inclination | 21.5° |
| Closest distance between its orbit and Earth's (MOID) | 0.878 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.