(6137) Johnfletcher Outer Main-belt Asteroid
Discovered on 25 January 1991 by Natori, A., Urata, T. at Yakiimo.
British amateur astronomer John Fletcher (b. 1947) lives in Tuffley, near Gloucester, where he regularly makes observations of minor planets. As a broadcaster and lecturer he is also very active in educational work. The name was suggested by P. Moore.Naming citation (20080618/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Johnfletcher is today
Seen from above the solar system on 2026-10-14: Johnfletcher is 3.40 au from the Sun and 4.36 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 6137 |
| Provisional designation | 1991 BY |
| Orbit class | Outer Main-belt Asteroid |
| Diameter | 30.7 km (#1,332 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0480 |
| Absolute magnitude (H) | 11.52 |
| Orbital period | 5.76 years |
| Semi-major axis | 3.21 au |
| Perihelion – aphelion | 3.01 – 3.42 au |
| Eccentricity | 0.0628 |
| Inclination | 15.4° |
| Closest distance between its orbit and Earth's (MOID) | 2.07 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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