(1209) Pumma Main-belt Asteroid
Discovered on 22 April 1927 by K. Reinmuth at Heidelberg.
Where Pumma is today
Seen from above the solar system on 2026-10-14: Pumma is 3.56 au from the Sun and 3.07 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 1209 |
| Provisional designation | 1927 HA |
| Orbit class | Main-belt Asteroid |
| Diameter | 26.9 km (#1,548 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.141 |
| Rotation period | 8.50 hours |
| Absolute magnitude (H) | 10.79 |
| Orbital period | 5.64 years |
| Semi-major axis | 3.17 au |
| Perihelion – aphelion | 2.77 – 3.57 au |
| Eccentricity | 0.127 |
| Inclination | 6.94° |
| Closest distance between its orbit and Earth's (MOID) | 1.75 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.