(4419) Allancook Main-belt Asteroid
Discovered on 24 April 1932 by K. Reinmuth at Heidelberg.
Where Allancook is today
Seen from above the solar system on 2026-10-14: Allancook is 3.29 au from the Sun and 2.42 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 4419 |
| Provisional designation | 1932 HD |
| Orbit class | Main-belt Asteroid |
| Rotation period | 5.28 hours |
| Absolute magnitude (H) | 12.69 |
| Orbital period | 5.34 years |
| Semi-major axis | 3.05 au |
| Perihelion – aphelion | 2.39 – 3.72 au |
| Eccentricity | 0.217 |
| Inclination | 0.410° |
| Closest distance between its orbit and Earth's (MOID) | 1.40 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.