Discovered by C. H. F. Peters Minor planet category Main belt Observation arc 136.47 yr (49845 d) Orbits Sun Named after Dido | Discovery date 22 October 1879 Adjectives Didonian Discovered 22 October 1879 Spectral type C-type asteroid Discovery site Litchfield Observatory | |
Alternative names A909 AB, A909 GB,
A912 RB Discoverer Christian Heinrich Friedrich Peters Similar 165 Loreley, 188 Menippe, 196 Philomela, 167 Urda, 264 Libussa | ||
209 Dido is a very large main-belt asteroid. It is classified as a C-type asteroid and is probably composed of carbonaceous materials. Like many asteroids of its type, it has an extremely low albedo.
It was discovered by C. H. F. Peters on October 22, 1879 in Clinton, New York and was named after the mythical Carthaginian queen Dido.
Photometric observations at the Palmer Divide Observatory during 2005 showed a rotation period of 5.7366 ± 0.0005 hours with a brightness variation of 0.17 ± 0.02 in magnitude.
References
209 Dido Wikipedia(Text) CC BY-SA