(5905) Johnson Inner Main-belt Asteroid
Discovered on 11 February 1989 by E. F. Helin at Palomar.
Named for Lindley N. Johnson, who is responsible for planning the potential use of space-surveillance assets to detect and track near-Earth objects. With degrees in astronomy and engineering management, he has been a space enthusiast since the age of 12. The discoverer and the Near-Earth Asteroid Tracking team wish to express their appreciation for his contributions to the development of the NASA-JPL NEAT program, which became operational on the Maui GEODSS telescope in Dec. 1995.Naming citation (WGSBN Bull. 5, #28, 5), IAU / Minor Planet Center, via NASA/JPL
👶 Johnson as a baby name🐶 Johnson as a dog name
Where Johnson is today
Seen from above the solar system on 2026-10-14: Johnson is 1.94 au from the Sun and 2.69 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 5905 |
| Provisional designation | 1989 CJ1 |
| Orbit class | Inner Main-belt Asteroid |
| Diameter | 4.73 km (#11,164 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.198 |
| Rotation period | 3.78 hours |
| Absolute magnitude (H) | 13.92 |
| Orbital period | 2.64 years |
| Semi-major axis | 1.91 au |
| Perihelion – aphelion | 1.77 – 2.05 au |
| Eccentricity | 0.0721 |
| Inclination | 27.5° |
| Closest distance between its orbit and Earth's (MOID) | 0.772 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.