(25155) van Belle Main-belt Asteroid
Discovered on 16 September 1998 by LONEOS at Anderson Mesa.
Gerard van Belle (b. 1968) is an astronomer at the Lowell Observatory. His research interests include fundamental properties of stars---masses, radii and temperatures. He has a special interest in optical interferometry and has used every major optical interferometer in the world.Naming citation (MPC batch dated 2015-06-02), IAU / Minor Planet Center, via NASA/JPL
Where van Belle is today
Seen from above the solar system on 2026-10-14: van Belle is 2.64 au from the Sun and 2.38 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 25155 |
| Provisional designation | 1998 SA55 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.94 km (#12,888 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.260 |
| Rotation period | 44.9 hours |
| Absolute magnitude (H) | 14.49 |
| Orbital period | 4.76 years |
| Semi-major axis | 2.83 au |
| Perihelion – aphelion | 2.60 – 3.06 au |
| Eccentricity | 0.0815 |
| Inclination | 2.36° |
| Closest distance between its orbit and Earth's (MOID) | 1.59 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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All asteroids named after someone called Gerard
Also discovered on 16 September 1998
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