(11521) Erikson Main-belt Asteroid
Discovered on 10 April 1991 by E. W. Elst at La Silla.
Erik H. Erikson (1902-1994) was a German-American psychoanalyst who made important contributions to the field of psychosocial development. Through his friendship with Anna Freud, he became interested in child psychoanalysis. His views on personality development were published in Childhood and Society (1950).Naming citation (20000523/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Erikson is today
Seen from above the solar system on 2026-10-14: Erikson is 3.58 au from the Sun and 3.74 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 11521 |
| Provisional designation | 1991 GE9 |
| Orbit class | Main-belt Asteroid |
| Diameter | 11.8 km (#4,167 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0550 |
| Rotation period | 13.9 hours |
| Absolute magnitude (H) | 13.49 |
| Orbital period | 5.63 years |
| Semi-major axis | 3.17 au |
| Perihelion – aphelion | 2.67 – 3.66 au |
| Eccentricity | 0.156 |
| Inclination | 2.14° |
| Closest distance between its orbit and Earth's (MOID) | 1.69 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Erik
- (7292) Prosperin
- (7939) Asphaug
- (8327) Weihenmayer
- (9438) Satie
- (10270) Skoglov
- (11307) Erikolsson
- (15170) Erikdeul
- (15621) Erikhovland
- (23801) Erikgustafson
- (24066) Eriksorensen
- (33044) Erikdavy
- (129955) Eriksyrstad
All asteroids named after someone called Erik
Also discovered on 10 April 1991
More named asteroids discovered by E. W. Elst
- (3631) Sigyn
- (3784) Chopin
- (3870) Mayre
- (3903) Kliment Ohridski
- (3910) Liszt
- (3912) Troja
- (3918) Brel
- (4038) Kristina
- (4226) Damiaan
- (4342) Freud
- (4344) Buxtehude
- (4345) Rachmaninoff
← (11520) Fromm · (11524) Pleyel →