(99949) Miepgies Main-belt Asteroid
Discovered on 16 March 1972 by T. Gehrels at Palomar.
Miep Gies (née Hermine Santrouschitz; b. 1909) is one of the Dutch citizens who hid Anne Frank and her family from the Nazis during World War II. She discovered and preserved Anne's diary after her arrest and deportation. The name was suggested by C. Koppeschaar.Naming citation (20091004/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Miepgies is today
Seen from above the solar system on 2026-10-14: Miepgies is 2.75 au from the Sun and 3.07 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 99949 |
| Provisional designation | 1972 FD |
| Orbit class | Main-belt Asteroid |
| Diameter | 9.33 km (#5,528 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0400 |
| Absolute magnitude (H) | 14.51 |
| Orbital period | 4.12 years |
| Semi-major axis | 2.57 au |
| Perihelion – aphelion | 2.20 – 2.95 au |
| Eccentricity | 0.146 |
| Inclination | 29.4° |
| Closest distance between its orbit and Earth's (MOID) | 1.22 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.