91 Aegina
From Academic Kids
| Orbital characteristics 1 (ftp://ftp.lowell.edu/pub/elgb/astorb.html) | |
|---|---|
| Orbit type | Main belt |
| Semimajor axis | 2.591 AU |
| Perihelion distance | 2.320 AU |
| Aphelion distance | 2.861 AU |
| Orbital period | 4.17 years |
| Inclination | 2.11° |
| Eccentricity | 0.105 |
| Physical characteristics 1 (ftp://ftp.lowell.edu/pub/elgb/astorb.html) | |
| Diameter | 109.8 km |
| Rotation period 3 (http://charlie.psi.edu/pds/) | 6.025 hours |
| Abs. magnitude | 8.84 |
| Albedo 4 (http://dorothy.as.arizona.edu/DSN/IRAS/index_iras.html) | 0.043 |
| History 2 (http://cfa-www.harvard.edu/iau/lists/NumberedMPs.html) | |
| Discoverer | Édouard Stephan, 1866 |
91 Aegina (e-jye'-na) is a large main belt asteroid. Its surface coloring is very dark and the asteroid has probably a primitive carbonaceous composition.
It was discovered by a French astronomer Édouard Jean-Marie Stephan on November 4, 1866. It was his second and final asteroid discovery. The first was 89 Julia. The asteroid's name comes from Aegina, a Greek mythological figure associated with the island of the same name.
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| (For other objects and regions, see: Binary asteroids, Asteroid moons and the Solar system) |
| (For a complete listing, see: List of asteroids. For pronunciation, see: Pronunciation of asteroid names.) |
