(159409) Ratte Main-belt Asteroid
Discovered on 16 July 1999 by Pises at Pises.
Hyacinthe de Ratte (1722-1805) was barely twenty years old when he was named general secretary of the French Royal Society of Sciences. On 1741 Aug. 10 he observed an aurora borealis in Montpellier. He observed the comet of 1757 and comet 1P/Halley in 1759, as well as the transit of Venus in 1761.Naming citation (20070926/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Ratte is today
Seen from above the solar system on 2026-10-14: Ratte is 2.64 au from the Sun and 3.61 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 159409 |
| Provisional designation | 1999 OJ |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 15.63 |
| Orbital period | 4.04 years |
| Semi-major axis | 2.54 au |
| Perihelion – aphelion | 2.23 – 2.84 au |
| Eccentricity | 0.120 |
| Inclination | 13.9° |
| Closest distance between its orbit and Earth's (MOID) | 1.22 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 16 July 1999
- (19614) Montelongo
- (20491) Ericstrege
- (20492) Luanaliberato
- (20493) Lutzhecht
- (38237) Roche
- (59793) Clapies
- (86043) Cevennes
- (91422) Giraudon