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Discovery[1]
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| Discovered by | Eric Walter Elst |
| Discovery site | European Southern Observatory |
| Discovery date | September 20, 1998 |
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Designations
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| MPC designation | 22740 |
| Named after | John Strutt, 3rd Baron Rayleigh |
| Alternate name(s) | 1998 SX146 |
| Epoch November 30, 2008 | |
| Ap | 3.9355 |
| Peri | 2.5609 |
| Semi-major axis | 3.24818 |
| Eccentricity | 0.211598 |
| Orbital period | 2138.25 |
| Mean anomaly | 346.207 |
| Inclination | 3.109 |
| Longitude of ascending node | 169.112 |
| Argument of peri | 113.631 |
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Physical characteristics
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| Absolute magnitude (H) | 13.2 |
22740 Rayleigh (1998 SX146) is an outer main-belt asteroid discovered on September 20, 1998 by Eric Walter Elst at the European Southern Observatory.[1] It is one of very few asteroids located in the 2 : 1 mean motion resonance with Jupiter.[3]
The asteroid was named in honour of the English physicist John William Rayleigh (1842–1919).
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