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| Orbital characteristics 1 | |
|---|---|
| Orbit type | Main belt |
| Semimajor axis | 2.665 AU |
| Perihelion distance | 2.141 AU |
| Aphelion distance | 3.188 AU |
| Orbital period | 4.35 years |
| Inclination | 13.86° |
| Eccentricity | 0.196 |
| Physical characteristics 1 | |
| Diameter | 71.9 km |
| Rotation period 3 | 10.35 hours |
| Abs. magnitude | 9.43 |
| AlbedoNote: This article discusses the physical or planetological property of albedo. For other usage, see Albedo (disambiguation). The albedo is a measure of reflectivity of a surface or body. It is the ratio of electromagnetic radiation reflected to the amoun 4 | 0.058 |
| History 2 | |
| Discoverer | A. Borrelly, 1868Events January 3 Meiji Emperor declares " Meiji Restoration", his own restoration to full power, against the supporters of the Tokugawa Shogunate. January 10 Shogun Tokugawa Yoshinobu declares emperor's declaration "illegal" and attacks Kyoto. Pro-Emperor |
99 Dike is a quite large and dark main belt asteroidAn asteroid is a small, solid object in our Solar System, orbiting the Sun. An asteroid is an example of a minor planet (or planetoid , which are much smaller than planets. The asteroids are believed to be remnants of the protoplanetary disc which were no.
Dike was discovered by Alphonse Borrelly on May 28May 28 is the 148th day of the year in the Gregorian calendar (149th in leap years). There are 217 days remaining. Events 585 BC A solar eclipse occurred, as predicted by Thales, while Alyattes is battling Cyaxares, leading to a truce. This is one of the, 1868. It was his first asteroid discovery. It is named after Dike, the Greek goddess of moral justice.