(7750) McEwen Main-belt Asteroid
Discovered on 18 August 1988 by Shoemaker, C. S., Shoemaker, E. M. at Palomar.
Named in honor of Alfred McEwen for his significant contributions to planetary geology in the fields of photogeology, photometry, spectroscopy, photoclinometry, instrument calibration and mission planning. His research has involved diverse topics concerning the earth, the moon, Mars, minor planets, Galilean satellites and outer planets. He has been (or is) a member of science teams on Cassini, Galileo, Clementine and Mars Global Surveyor. Citation prepared by M. S. Robinson at the request of C. S. Shoemaker.Naming citation (19990202/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where McEwen is today
Seen from above the solar system on 2026-10-14: McEwen is 3.45 au from the Sun and 3.48 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 7750 |
| Provisional designation | 1988 QD1 |
| Orbit class | Main-belt Asteroid |
| Diameter | 14.2 km (#3,330 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0600 |
| Rotation period | 27.8 hours |
| Absolute magnitude (H) | 13.21 |
| Orbital period | 4.59 years |
| Semi-major axis | 2.76 au |
| Perihelion – aphelion | 1.73 – 3.80 au |
| Eccentricity | 0.374 |
| Inclination | 15.8° |
| Closest distance between its orbit and Earth's (MOID) | 0.786 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Alfred
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- (14331) Alyankovic
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All asteroids named after someone called Alfred