Minor planet category Main belt Discovered 10 December 1879 | Discovery date 10 December 1879 Observation arc 136.19 yr (49742 d) Orbits Sun Discovery site Pola Observatory | |
Alternative names A912 AB, A912 BA,1950 FM Aphelion 3.53270 AU (528.484 Gm) Similar 276 Adelheid, 266 Aline, 220 Stephania, 165 Loreley, 242 Kriemhild | ||
211 Isolda is a very large, dark main-belt asteroid. It is classified as a C-type asteroid and is probably composed of primitive carbonaceous material.
It was discovered by Austrian astronomer Johann Palisa on December 10, 1879, in Pola, and named after Isolde, heroine of the legend of Tristan and Iseult.
In 2001, the asteroid was detected by radar from the Arecibo Observatory at a distance of 1.78 AU. The resulting data yielded an effective diameter of 143 ± 16 km.
References
211 Isolda Wikipedia(Text) CC BY-SA