(31139) Garnavich Main-belt Asteroid
Discovered on 25 September 1997 by Ondrejov at Ondrejov.
Peter M. Garnavich (b. 1958), an associate professor at the University of Notre Dame, Indiana, works in the field of observational astrophysics, mainly on the connection between γ-ray bursts and supernovae. The name was suggested by K. Hornoch.Naming citation (20070730/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Garnavich is today
Seen from above the solar system on 2026-10-14: Garnavich is 2.77 au from the Sun and 2.67 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 31139 |
| Provisional designation | 1997 SJ34 |
| Orbit class | Main-belt Asteroid |
| Diameter | 1.96 km (#17,069 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.241 |
| Absolute magnitude (H) | 15.94 |
| Orbital period | 3.76 years |
| Semi-major axis | 2.42 au |
| Perihelion – aphelion | 2.06 – 2.77 au |
| Eccentricity | 0.147 |
| Inclination | 1.37° |
| Closest distance between its orbit and Earth's (MOID) | 1.08 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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