(10667) van Marxveldt Inner Main-belt Asteroid
Discovered on 28 October 1975 by T. Gehrels at Palomar.
The humorous “Joop ter Heul” novels for teenage girls by Dutch writer Cissy van Marxveldt (Setske de Haan, 1889-1948) had a notable influence on the writings of Anne Frank, who addressed her diary letters to an imaginary friend based on one of van Marxveldt's characters. The name was suggested by L. E. Timmerman.Naming citation (20071124/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where van Marxveldt is today
Seen from above the solar system on 2026-10-14: van Marxveldt is 2.13 au from the Sun and 3.01 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 10667 |
| Provisional designation | 1975 UA |
| Orbit class | Inner Main-belt Asteroid |
| Absolute magnitude (H) | 15.25 |
| Orbital period | 2.75 years |
| Semi-major axis | 1.96 au |
| Perihelion – aphelion | 1.79 – 2.14 au |
| Eccentricity | 0.0878 |
| Inclination | 20.3° |
| Closest distance between its orbit and Earth's (MOID) | 0.811 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.