(20390) Isabelherreros Main-belt Asteroid
Discovered on 23 May 1998 by LINEAR at Socorro.
Maria Isabel Herreros Cid (b. 1975) is a Spanish physicist specializing in the mechanics of fluids and solids and asteroids physics. She is an official member of the DART mission, which investigated the Didymos system. Maria studies craters formation and asteroid surface dynamics.Naming citation (WGSBN Bull. 6, #11, 17), IAU / Minor Planet Center, via NASA/JPL
Where Isabelherreros is today
Seen from above the solar system on 2026-10-14: Isabelherreros is 2.72 au from the Sun and 2.03 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 20390 |
| Provisional designation | 1998 KK55 |
| Orbit class | Main-belt Asteroid |
| Diameter | 4.66 km (#11,317 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.246 |
| Absolute magnitude (H) | 14.07 |
| Orbital period | 4.54 years |
| Semi-major axis | 2.74 au |
| Perihelion – aphelion | 2.66 – 2.82 au |
| Eccentricity | 0.0291 |
| Inclination | 9.59° |
| Closest distance between its orbit and Earth's (MOID) | 1.68 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Maria
- (4555) Josefaperez
- (6635) Zuber
- (7026) Gabrielasilang
- (7722) Firneis
- (9013) Sansaturio
- (9815) Mariakirch
- (9822) Hajdukova
- (10924) Mariagriffin
- (11517) Esteracuna
- (12005) Delgiudice
- (12624) Mariacunitia
- (13760) Rodriguez
All asteroids named after someone called Maria
Also discovered on 23 May 1998
- (12864) Ryandrake
- (18730) Wingip
- (18731) Vil'bakirov
- (19494) Gerbs
- (19495) Terentyeva
- (19500) Hillaryfultz
- (20366) Bonev
- (20367) Erikagibb
- (20382) Hiroshinaraoka
- (20383) Hirotakasawada
- (20384) Hongsuhyim
- (20385) Horiuchi