(31122) Brooktaylor Main-belt Asteroid
Discovered on 21 September 1997 by P. G. Comba at Prescott.
Brook Taylor (1685-1731) was an English mathematician whose name is associated with a basic theorem in the differential calculus, whereby the value of a function at an arbitrary point is expressed as a power series involving the values of the function and its derivatives at another point.Naming citation (20020328/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Brooktaylor is today
Seen from above the solar system on 2026-10-14: Brooktaylor is 1.89 au from the Sun and 2.04 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 31122 |
| Provisional designation | 1997 SD |
| Orbit class | Main-belt Asteroid |
| Diameter | 2.56 km (#16,147 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.224 |
| Absolute magnitude (H) | 15.19 |
| Orbital period | 3.25 years |
| Semi-major axis | 2.19 au |
| Perihelion – aphelion | 1.89 – 2.50 au |
| Eccentricity | 0.139 |
| Inclination | 3.07° |
| Closest distance between its orbit and Earth's (MOID) | 0.875 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.