(69949) Thierrydemange Main-belt Asteroid
Discovered on 11 November 1998 by ODAS at Caussols.
Thierry Demange (b. 1970) has been a French amateur astrophotographer since the age of 17. He is a hydrologist, specializing in pure-water processing. Thierry is a founding member of APO_Team, which operates a telescope in the Atacama desert in Chile. This program has discovered dozens of new planetary nebulae.Naming citation (WGSBN Bull. 6, #9, 17), IAU / Minor Planet Center, via NASA/JPL
Where Thierrydemange is today
Seen from above the solar system on 2026-10-14: Thierrydemange is 3.01 au from the Sun and 2.08 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 69949 |
| Provisional designation | 1998 VN4 |
| Orbit class | Main-belt Asteroid |
| Diameter | 8.33 km (#6,289 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0770 |
| Absolute magnitude (H) | 14.09 |
| Orbital period | 5.61 years |
| Semi-major axis | 3.16 au |
| Perihelion – aphelion | 2.93 – 3.38 au |
| Eccentricity | 0.0711 |
| Inclination | 10.3° |
| Closest distance between its orbit and Earth's (MOID) | 1.96 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Thierry
All asteroids named after someone called Thierry
Also discovered on 11 November 1998
- (12568) Kuffner
- (12919) Tomjohnson
- (13793) Laubernasconi
- (13801) Kohlhase
- (14632) Flensburg
- (25259) Lucarnold
- (27110) Annemaryvonne
- (28173) Hisakichi
- (33334) Turon
- (33335) Guibert
- (44456) Vidal-Madjar
- (47018) Chopinet