(100000) Astronautica Inner Main-belt Asteroid
Discovered on 28 September 1982 by J. Gibson at Palomar.
This minor planet is being named Astronautica to recognize the fiftieth anniversary of the start of the Space Age, inaugurated by the launching of the first artificial earth satellite on 1957 Oct. 4. The name is associated with this significant number, as space is defined to begin at an altitude of 100 000 meters above the earth's surface.Naming citation (20070926/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Astronautica is today
Seen from above the solar system on 2026-10-14: Astronautica is 1.97 au from the Sun and 2.51 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 100000 |
| Provisional designation | 1982 SH1 |
| Orbit class | Inner Main-belt Asteroid |
| Absolute magnitude (H) | 16.91 |
| Orbital period | 2.63 years |
| Semi-major axis | 1.90 au |
| Perihelion – aphelion | 1.74 – 2.07 au |
| Eccentricity | 0.0874 |
| Inclination | 21.2° |
| Closest distance between its orbit and Earth's (MOID) | 0.743 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.