(19458) Legault Main-belt Asteroid
Discovered on 21 April 1998 by M. Boeuf at Les Tardieux.
Thierry Legault (b. 1962) is an amateur astronomer who produces amazing high-resolution astronomical pictures. He is a member of the French astronomical association AUDE.Naming citation (20010509/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Legault is today
Seen from above the solar system on 2026-10-14: Legault is 2.59 au from the Sun and 1.62 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 19458 |
| Provisional designation | 1998 HE8 |
| Orbit class | Main-belt Asteroid |
| Diameter | 2.58 km (#16,114 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.667 |
| Rotation period | 145 hours |
| Absolute magnitude (H) | 14.11 |
| Orbital period | 3.81 years |
| Semi-major axis | 2.44 au |
| Perihelion – aphelion | 2.25 – 2.63 au |
| Eccentricity | 0.0777 |
| Inclination | 6.83° |
| Closest distance between its orbit and Earth's (MOID) | 1.24 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Thierry
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- (12761) Pauwels
- (13396) Midavaine
- (69949) Thierrydemange
- (189944) Leblanc
- (211473) Herin
All asteroids named after someone called Thierry
Also discovered on 21 April 1998
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- (11718) Hayward
- (11719) Hicklen
- (11720) Horodyskyj
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- (11724) Ronaldhsu
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- (12093) Chrimatthews