(55720) Daandehoop Inner Main-belt Asteroid
Discovered on 15 September 1972 by T. Gehrels at Palomar.
Daniël “Daan” de Hoop (b. 1945), honorary member and chairman of the Dutch Association for Spaceflight (1995-2005), made many valuable contributions to the public understanding of spaceflight and space exploration. The name was suggested by C. E. Koppeschaar.Naming citation (20100130/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Daandehoop is today
Seen from above the solar system on 2026-10-14: Daandehoop is 1.80 au from the Sun and 2.54 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 55720 |
| Provisional designation | 1972 RE |
| Orbit class | Inner Main-belt Asteroid |
| Absolute magnitude (H) | 15.76 |
| Orbital period | 2.65 years |
| Semi-major axis | 1.92 au |
| Perihelion – aphelion | 1.73 – 2.11 au |
| Eccentricity | 0.0986 |
| Inclination | 22.6° |
| Closest distance between its orbit and Earth's (MOID) | 0.850 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.