(74509) Gillett Main-belt Asteroid
Discovered on 22 March 1999 by C. W. Juels at Fountain Hills.
Frederick C. Gillett (1937-2001), a pioneer in infrared astronomy, was the discoverer of the infrared excess of Vega in 1983 using the Infrared Astronomy Satellite. The Gemini North 8-m Telescope was renamed the Frederick C. Gillett Gemini Telescope in his honor on 2002 Nov. 18.Naming citation (20050919/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Gillett is today
Seen from above the solar system on 2026-10-14: Gillett is 2.98 au from the Sun and 3.96 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 74509 |
| Provisional designation | 1999 FG7 |
| Orbit class | Main-belt Asteroid |
| Diameter | 4.64 km (#11,348 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.142 |
| Absolute magnitude (H) | 14.43 |
| Orbital period | 5.49 years |
| Semi-major axis | 3.11 au |
| Perihelion – aphelion | 2.68 – 3.54 au |
| Eccentricity | 0.138 |
| Inclination | 0.993° |
| Closest distance between its orbit and Earth's (MOID) | 1.70 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Frederick
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- (9273) Schloerb
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- (39566) Carllewis
- (43293) Banting
- (45595) Inman
- (95449) Frederickgregory
- (152641) Fredreed
- (164405) Fennell
All asteroids named after someone called Frederick
Also discovered on 22 March 1999
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- (17035) Velichko
- (17036) Krugly
- (17045) Markert
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