(9902) Kirkpatrick Main-belt Asteroid
Discovered on 3 July 1997 by P. G. Comba at Prescott.
Named for Ralph Kirkpatrick (1911-1984), eminent American harpsichordist, clavichordist, musicologist and teacher. He traveled extensively in Europe, where he studied seventeenth-century and eighteenth-century performance practices in chamber music. He wrote a biography of Domenico Scarlatti and prepared a facsimile edition of his more than 500 sonatas. He gave many concerts, specializing in the performance of works by Scarlatti and J. S. Bach.Naming citation (19990402/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Kirkpatrick is today
Seen from above the solar system on 2026-10-14: Kirkpatrick is 2.39 au from the Sun and 2.97 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 9902 |
| Provisional designation | 1997 NY |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.61 km (#13,680 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.179 |
| Rotation period | 6.03 hours |
| Absolute magnitude (H) | 14.44 |
| Orbital period | 3.29 years |
| Semi-major axis | 2.21 au |
| Perihelion – aphelion | 2.03 – 2.39 au |
| Eccentricity | 0.0826 |
| Inclination | 5.32° |
| Closest distance between its orbit and Earth's (MOID) | 1.04 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Ralph
- (9003) Ralphmilliken
- (9850) Ralphcopeland
- (9881) Sampson
- (10491) Chou
- (11377) Nye
- (12956) Ralphwijers
- (13852) Ford
- (33594) Ralphlawton
- (50427) Ralphmerrifield
- (172191) Ralphmcnutt
All asteroids named after someone called Ralph
More named asteroids discovered by P. G. Comba
- (7684) Marioferrero
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- (8224) Fultonwright
- (8407) Houlahan
- (8420) Angrogna
- (8580) Pinsky
- (8583) Froberger
- (8734) Warner
- (8945) Cavaradossi
- (9238) Yavapai
- (9445) Charpentier
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← (9900) Llull · (9903) Leonhardt →