(15899) Silvain Main-belt Asteroid
Discovered on 3 September 1997 by P. Antonini at Bedoin.
Jacques Silvain (1926-1987) was an enthusiastic amateur astronomer who devoted much time to visual and photographic observations. He was an active member of the Société Astronomique de France and built several telescopes.Naming citation (20010509/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Silvain is today
Seen from above the solar system on 2026-10-14: Silvain is 2.01 au from the Sun and 1.81 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 15899 |
| Provisional designation | 1997 RR1 |
| Orbit class | Main-belt Asteroid |
| Diameter | 2.54 km (#16,175 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.207 |
| Absolute magnitude (H) | 15.52 |
| Orbital period | 3.26 years |
| Semi-major axis | 2.20 au |
| Perihelion – aphelion | 2.01 – 2.39 au |
| Eccentricity | 0.0884 |
| Inclination | 2.33° |
| Closest distance between its orbit and Earth's (MOID) | 0.991 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Jacques
- (3256) Daguerre
- (6542) Jacquescousteau
- (10089) Turgot
- (10830) Desforges
- (13231) Blondelet
- (14621) Tati
- (18605) Jacqueslaskar
- (18624) Prevert
- (24102) Jacquescassini
- (37782) Jacquespiccard
- (47054) Jacquesblamont
- (52655) Villermaux
All asteroids named after someone called Jacques