4276 Clifford
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| Discovery | |
|---|---|
| Discovered by | Edward L. G. Bowell |
| Discovery date | December 2, 1981 |
| Designations | |
| Alternative names | 1981 XA |
| Minor planet category | Main belt, Mars-crosser asteroid |
| Orbital characteristics | |
| Epoch 22 September 2006 (JD 2454000.5) | |
| Aphelion | 361.985 Gm (2.41971867 AU) |
| Perihelion | 239.196 Gm (1.5989221 AU) |
| Semi-major axis | 300.590 Gm (2.0093204 AU) |
| Eccentricity | 0.2042473 |
| Orbital period | 1040.3325966 d (2.8483 a) |
| Average orbital speed | km/s |
| Mean anomaly | 242.8843° |
| Inclination | 21.03722° |
| Longitude of ascending node | 76.96238° |
| Argument of perihelion | 3.46733° |
| Physical characteristics | |
| Dimensions | 7.5 km |
| Mass | unknown |
| Mean density | unknown |
| Equatorial surface gravity | unknown |
| Escape velocity | unknown |
| Rotation period | unknown |
| Albedo | .15 |
| Temperature | unknown |
| Spectral type | Cb |
| Absolute magnitude (H) | 14.30 |
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The asteroid 4276 Clifford (previously known by the provisional designation (1981 XA) was discovered on December 2, 1981 by Edward L. G. Bowell at Flagstaff Observatory. It was named in honor of astronomer/author Clifford Cunningham. It is a member of the group of Main belt asteroids known as Mars-crosser asteroids, specifically it is listed as an Outer-grazer.
External links
- JPL's Info page
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