(13497) Ronstone Main-belt Asteroid
Discovered on 5 March 1986 by E. Bowell at Anderson Mesa.
Ronald C. Stone (b. 1946) joined the U.S. Naval Observatory in 1981, working in Washington D.C., in New Zealand and in Flagstaff, Arizona. He developed the Flagstaff Astrometric Scanning Transit Telescope (FASTT) and obtained extremely accurate positions for thousands of minor planets.Naming citation (20050523/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Ronstone is today
Seen from above the solar system on 2026-10-14: Ronstone is 2.77 au from the Sun and 2.41 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 13497 |
| Provisional designation | 1986 EK1 |
| Orbit class | Main-belt Asteroid |
| Diameter | 4.77 km (#11,064 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.299 |
| Rotation period | 11.8 hours |
| Absolute magnitude (H) | 13.66 |
| Orbital period | 3.54 years |
| Semi-major axis | 2.32 au |
| Perihelion – aphelion | 1.78 – 2.86 au |
| Eccentricity | 0.232 |
| Inclination | 23.3° |
| Closest distance between its orbit and Earth's (MOID) | 0.913 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Ronald
- (2285) Ron Helin
- (3579) Rockholt
- (6949) Zissell
- (9852) Gora
- (9923) Ronaldthiel
- (10508) Haughey
- (11724) Ronaldhsu
- (16813) Ronmastaler
- (17853) Ronaldsayer
- (18239) Ekers
- (20465) Vervack
- (21451) Fisher
All asteroids named after someone called Ronald
Also discovered on 5 March 1986
- (3987) Wujek
- (4087) Part
- (4448) Phildavis
- (4821) Bianucci
- (5393) Goldstein
- (6373) Stern
- (7515) Marrucino
- (11022) Serio