(18376) Quirk Main-belt Asteroid
Discovered on 30 September 1991 by R. H. McNaught at Siding Spring.
Steven (Steve) Quirk (b. 1958) is an accomplished astrophotographer whose photographs have appeared in many books and magazines. He has been of immense assistance to the discoverer by volunteering to operate fireball patrol and meteor video cameras.Naming citation (20040504/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Quirk is today
Seen from above the solar system on 2026-10-14: Quirk is 2.80 au from the Sun and 3.51 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 18376 |
| Provisional designation | 1991 SQ |
| Orbit class | Main-belt Asteroid |
| Rotation period | 7.67 hours |
| Absolute magnitude (H) | 14.84 |
| Orbital period | 4.50 years |
| Semi-major axis | 2.72 au |
| Perihelion – aphelion | 2.09 – 3.36 au |
| Eccentricity | 0.234 |
| Inclination | 10.5° |
| Closest distance between its orbit and Earth's (MOID) | 1.09 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 30 September 1991
- (6020) Miyamoto
- (7128) Misawa
- (8283) Edinburgh
- (9349) Lucas
- (10098) Jaymiematthews
- (14420) Massey
- (14424) Laval
- (14888) Kanazawashi
- (20015) Liguori
- (46568) Stevenlee