(9477) Kefennell Main-belt Asteroid
Discovered on 17 August 1998 by LINEAR at Socorro.
Katherine Elizabeth Fennell (b. 1999) is a finalist in the 2012 Broadcom MASTERS, a math and science competition for middle-school students, for her animal and plant sciences project. She attends the Montessori Middle School, Norwalk, Connecticut.Naming citation (20121029/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Kefennell is today
Seen from above the solar system on 2026-10-14: Kefennell is 2.40 au from the Sun and 1.42 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 9477 |
| Provisional designation | 1998 QK41 |
| Orbit class | Main-belt Asteroid |
| Diameter | 2.43 km (#16,392 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.299 |
| Absolute magnitude (H) | 15.35 |
| Orbital period | 3.47 years |
| Semi-major axis | 2.29 au |
| Perihelion – aphelion | 2.18 – 2.41 au |
| Eccentricity | 0.0500 |
| Inclination | 1.79° |
| Closest distance between its orbit and Earth's (MOID) | 1.17 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Katherine
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- (13275) Kathgoetz
- (17218) Stgeorge
- (17980) Vanschaik
- (18787) Kathermann
- (18992) Katharvard
- (20281) Kathartman
- (20791) de Kleer
- (21939) Kasmith
- (23875) Strube
- (24119) Katherinrose
- (24385) Katcagen
All asteroids named after someone called Katherine
Also discovered on 17 August 1998
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- (9476) Vincenthuang
- (10635) Chiragkumar
- (11189) Rabeaton
- (11369) Brazelton
- (11370) Nabrown
- (11371) Camley
- (11372) Aditisingh
- (11373) Carbonaro
- (11737) Gregneat
- (12545) Taniamurphy
- (12548) Erinriley