Discovered by C. H. F. Peters Alternative names 1973 PB Observation arc 130.59 yr (47699 d) Inclination 9.61979° Discovery site Litchfield Observatory | Discovery date 16 August 1885 Minor planet category Main belt Discovered 16 August 1885 Orbits Sun Asteroid group Asteroid belt | |
Aphelion 2.89450 AU (433.011 Gm) Discoverer Christian Heinrich Friedrich Peters Similar 188 Menippe, 264 Libussa, 167 Urda, 196 Philomela, 165 Loreley | ||
249 Ilse is a Main belt asteroid. It has an unusually slow rotation period, about 3.5 days.
It was discovered by C. H. F. Peters on August 16, 1885 in Clinton, New York and was named after Ilse, a legendary German princess.
Due to the long rotation period, a possible asteroidal satellite of Ilse was proposed by R. P. Binzel in 1987 however no evidence of this has been found.
References
249 Ilse Wikipedia(Text) CC BY-SA