(2557) Putnam Main-belt Asteroid
Discovered on 26 September 1981 by Skiff, B. A., Thomas, N. G. at Anderson Mesa.
👶 Putnam as a baby name🐶 Putnam as a dog name
Where Putnam is today
Seen from above the solar system on 2026-10-14: Putnam is 2.72 au from the Sun and 3.71 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 2557 |
| Provisional designation | 1981 SL1 |
| Orbit class | Main-belt Asteroid |
| Diameter | 7.46 km (#7,131 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.348 |
| Rotation period | 35.7 hours |
| Absolute magnitude (H) | 12.91 |
| Orbital period | 3.60 years |
| Semi-major axis | 2.35 au |
| Perihelion – aphelion | 1.98 – 2.72 au |
| Eccentricity | 0.156 |
| Inclination | 6.07° |
| Closest distance between its orbit and Earth's (MOID) | 0.984 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 26 September 1981
- (2558) Viv
- (2582) Harimaya-Bashi
- (3256) Daguerre
- (3467) Bernheim
- (3621) Curtis
- (3807) Pagels
- (3898) Curlewis
- (4193) Salanave
More named asteroids discovered by Skiff, B. A., Thomas, N. G.
← (2556) Louise · (2558) Viv →