(10513) Mackie Outer Main-belt Asteroid
Discovered on 2 October 1989 by H. Debehogne at La Silla.
Guy Thomas Mackie (b. 1955) is an amateur astronomer in British Columbia, Canada, who served three years as President of RASC's Okanagan Centre. Mackie also started Okanagan Centre's telescope rental program, became Director of the club observatory in 2009, worked on the organizing committee of the Mount Kobau Star Party and won the RASC Service Award in 2010.Naming citation (WGSBN Bull. 2, #15, 9), IAU / Minor Planet Center, via NASA/JPL
Where Mackie is today
Seen from above the solar system on 2026-10-14: Mackie is 3.40 au from the Sun and 4.13 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 10513 |
| Provisional designation | 1989 TJ14 |
| Orbit class | Outer Main-belt Asteroid |
| Diameter | 18.3 km (#2,447 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.132 |
| Rotation period | 8.34 hours |
| Absolute magnitude (H) | 11.94 |
| Orbital period | 5.78 years |
| Semi-major axis | 3.22 au |
| Perihelion – aphelion | 2.99 – 3.45 au |
| Eccentricity | 0.0718 |
| Inclination | 24.4° |
| Closest distance between its orbit and Earth's (MOID) | 1.99 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Guy
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- (7708) Fennimore
- (10281) Libourel
- (12687) de Valory
- (12719) Pingre
- (13226) Soulie
- (13622) McArthur
- (15355) Maupassant
- (19629) Serra
- (21008) Ottewell
- (72834) Guywells
- (278197) Touvron
All asteroids named after someone called Guy
Also discovered on 2 October 1989
- (4264) Karljosephine
- (5476) Mulius
- (5907) Rhigmus
- (7754) Gopalan
- (10512) Yamandu
- (11868) Kleinrichert
- (18343) Asja