(20055) Mariaespinola Main-belt Asteroid
Discovered on 19 March 1993 by UESAC at La Silla.
María Espínola Espínola (1878–1963) was a Uruguayan teacher and supervisor who founded the first school of technical studies in San José de Mayo city. In 1921 she became a member of the Council of Normal and Primary Education, the highest post ever held by a woman in Uruguay up to that time. In 1922 she published the book La escuela y el progreso.Naming citation (WGSBN Bull. 4, #13, 18), IAU / Minor Planet Center, via NASA/JPL
Where Mariaespinola is today
Seen from above the solar system on 2026-10-14: Mariaespinola is 2.55 au from the Sun and 1.66 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 20055 |
| Provisional designation | 1993 FB47 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 15.39 |
| Orbital period | 4.46 years |
| Semi-major axis | 2.71 au |
| Perihelion – aphelion | 2.48 – 2.94 au |
| Eccentricity | 0.0854 |
| Inclination | 2.33° |
| Closest distance between its orbit and Earth's (MOID) | 1.49 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 19 March 1993
- (6666) Fro
- (6739) Tarendo
- (7431) Jettaguilar
- (7528) Huskvarna
- (7706) Mien
- (7833) Nilstamm
- (8539) Laban
- (8698) Bertilpettersson
- (8881) Prialnik
- (9372) Vamlingbo
- (9373) Hamra
- (9374) Sundre