(5773) Hopper Main-belt Asteroid
Discovered on 2 July 1989 by E. F. Helin at Palomar.
Grace Hopper (1906-1992) was an American computer scientist and rear admiral in the United States Navy. A pioneer in programming, she invented one of the first compilers and was instrumental in the development of COBOL. She was awarded over 40 honorary degrees in her lifetime, as well as the Presidential Medal of Freedom in 2016.Naming citation (MPC batch dated 2019-12-12), IAU / Minor Planet Center, via NASA/JPL
Where Hopper is today
Seen from above the solar system on 2026-10-14: Hopper is 1.98 au from the Sun and 1.99 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 5773 |
| Provisional designation | 1989 NO |
| Orbit class | Main-belt Asteroid |
| Diameter | 4.58 km (#11,462 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.335 |
| Rotation period | 109 hours |
| Absolute magnitude (H) | 13.73 |
| Orbital period | 3.38 years |
| Semi-major axis | 2.25 au |
| Perihelion – aphelion | 1.91 – 2.60 au |
| Eccentricity | 0.153 |
| Inclination | 4.76° |
| Closest distance between its orbit and Earth's (MOID) | 0.900 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Grace
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- (9459) Gracecai
- (19428) Gracehsu
- (23179) Niedermeyer
- (27253) Graceleanor
- (33573) Hugrace
- (34268) Gracetian
- (50739) Gracecook
All asteroids named after someone called Grace