(12742) Delisle Main-belt Asteroid
Discovered on 26 July 1992 by E. W. Elst at Caussols.
Joseph-Nicolas Delisle (1688-1768) was a French astronomer who went to Russia, where he founded the observatory of St. Petersburg. His brother, Guillaume Delisle (1675-1726), reformed French cartography by introducing a method for fixing positions by astronomical observation.Naming citation (20041126/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Delisle is today
Seen from above the solar system on 2026-10-14: Delisle is 2.78 au from the Sun and 2.24 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 12742 |
| Provisional designation | 1992 OF1 |
| Orbit class | Main-belt Asteroid |
| Diameter | 25.0 km (#1,695 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0450 |
| Absolute magnitude (H) | 12.32 |
| Orbital period | 5.51 years |
| Semi-major axis | 3.12 au |
| Perihelion – aphelion | 2.44 – 3.80 au |
| Eccentricity | 0.218 |
| Inclination | 9.70° |
| Closest distance between its orbit and Earth's (MOID) | 1.45 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Nicolas
- (7346) Boulanger
- (10303) Freret
- (12289) Carnot
- (12999) Torun
- (13583) Bosret
- (14054) Dusek
- (14411) Clerambault
- (18638) Nouet
- (20605) Rambaux
- (25747) Nicerasmus
- (26969) Biver
- (43843) Cleynaerts
All asteroids named after someone called Nicolas
Also discovered on 26 July 1992
- (7064) Montesquieu
- (7093) Jonleake
- (8686) Akenside
- (9194) Ananoff
- (10350) Spallanzani
- (10799) Yucatan
- (16583) Oersted
- (29244) Van Damme