(4909) Couteau Main-belt Asteroid
Discovered on 28 September 1949 by M. Laugier at Nice.
Where Couteau is today
Seen from above the solar system on 2026-10-14: Couteau is 2.83 au from the Sun and 3.75 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 4909 |
| Provisional designation | 1949 SA1 |
| Orbit class | Main-belt Asteroid |
| Diameter | 5.32 km (#10,009 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.278 |
| Rotation period | 5.05 hours |
| Spectral type | S |
| Absolute magnitude (H) | 13.56 |
| Orbital period | 3.43 years |
| Semi-major axis | 2.27 au |
| Perihelion – aphelion | 1.71 – 2.83 au |
| Eccentricity | 0.247 |
| Inclination | 2.41° |
| Closest distance between its orbit and Earth's (MOID) | 0.707 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
More named asteroids discovered by M. Laugier
- (1247) Memoria
- (1426) Riviera
- (1461) Jean-Jacques
- (1651) Behrens
- (1681) Steinmetz
- (1690) Mayrhofer
- (1730) Marceline
- (1755) Lorbach
- (1884) Skip
- (2068) Dangreen
- (2106) Hugo
- (2384) Schulhof
← (4908) Ward · (4910) Kawasato →