(20438) Julievermersch Main-belt Asteroid
Discovered on 10 May 1999 by LINEAR at Socorro.
Julie Vermersch (b. 1998) is a French dynamicist who studies internal structures of small bodies, in particular main-belt asteroids (MBA). She derived various MBA geophysical parameters like friction angle, stress angle and strength to explain non-hydrostatic shapes. Her work helps determine the limit between dwarf planets and small bodies.Naming citation (WGSBN Bull. 6, #11, 20), IAU / Minor Planet Center, via NASA/JPL
Where Julievermersch is today
Seen from above the solar system on 2026-10-14: Julievermersch is 1.80 au from the Sun and 1.84 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 20438 |
| Provisional designation | 1999 JP22 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.52 km (#13,901 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0980 |
| Absolute magnitude (H) | 15.49 |
| Orbital period | 3.36 years |
| Semi-major axis | 2.24 au |
| Perihelion – aphelion | 1.79 – 2.70 au |
| Eccentricity | 0.201 |
| Inclination | 2.49° |
| Closest distance between its orbit and Earth's (MOID) | 0.775 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Julie
- (7460) Julienicoles
- (7909) Ziffer
- (11274) Castillo-Rogez
- (12880) Juliegrady
- (14574) Payette
- (16944) Wangler
- (17439) Juliesan
- (20776) Juliekrugler
- (23674) Juliebaker
- (24410) Juliewalker
- (26435) Juliebrisset
- (33498) Juliesmith
All asteroids named after someone called Julie
Also discovered on 10 May 1999
- (11219) Benbohn
- (11225) Borden
- (11227) Ksenborisova
- (11228) Botnick
- (11229) Brookebowers
- (11230) Deschaffer
- (11231) Schiavo
- (11413) Catanach
- (11414) Allanchu
- (12117) Meagmessina
- (16048) Eddiedai
- (16049) D'Amore