(24103) Dethury Main-belt Asteroid
Discovered on 9 November 1999 by C. W. Juels at Fountain Hills.
César-François Cassini (1714-1784), a.k.a. Cassini de Thury or Cassini III, succeeded his father, Jacques Cassini, in 1740 as third director of the Paris Observatory. He was also a cartographer and was instrumental in producing the first modern map of France using the triangulation method.Naming citation (20020921/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Dethury is today
Seen from above the solar system on 2026-10-14: Dethury is 3.00 au from the Sun and 3.38 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 24103 |
| Provisional designation | 1999 VS9 |
| Orbit class | Main-belt Asteroid |
| Diameter | 4.91 km (#10,785 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.221 |
| Absolute magnitude (H) | 14.08 |
| Orbital period | 4.31 years |
| Semi-major axis | 2.65 au |
| Perihelion – aphelion | 2.14 – 3.15 au |
| Eccentricity | 0.191 |
| Inclination | 15.1° |
| Closest distance between its orbit and Earth's (MOID) | 1.13 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Francois
- (7865) Francoisgros
- (9349) Lucas
- (9553) Colas
- (9588) Quesnay
- (10140) Villon
- (12898) Mignard
- (13180) Fourcroy
- (13560) La Perouse
- (14189) Sevre
- (19250) Poullain
- (31043) Sturm
- (31823) Viete
All asteroids named after someone called Francois
Also discovered on 9 November 1999
- (14220) Alexgibbs
- (19719) Glasser
- (20695) Santiagoiglesias
- (20696) Torresduarte
- (21900) Orus
- (21942) Subramanian
- (21943) Diannacowern
- (21962) Scottsandford
- (23002) Jillhirsch
- (23003) Ziminski
- (23004) Triciatalbert
- (24101) Cassini