description 190 Ismene Overview
190 Ismene is a large asteroid in the outer main belt discovered by Christian Heinrich Friedrich Peters on 22 September 1878 at Clinton, New York. It is a dark P-type body in the Hilda dynamical group and follows a roughly 3:2 mean-motion resonance with Jupiter; its diameter is estimated at about 160 kilometers, and its name refers to Ismene, the daughter of Oedipus and Jocasta and sister of Antigone in Greek mythology.
help 190 Ismene FAQ
Who discovered asteroid 190 Ismene?
Christian Heinrich Friedrich Peters discovered 190 Ismene on 22 September 1878. The discovery was made at Clinton, New York.
What type of asteroid is 190 Ismene?
190 Ismene is a dark P-type asteroid in the outer main belt. It belongs to the Hilda dynamical group.
What is special about the orbit of 190 Ismene?
190 Ismene follows a roughly 3:2 mean-motion resonance with Jupiter, like other Hilda-group members. This resonance keeps its orbital motion dynamically linked to Jupiter over long periods.
Is 190 Ismene a large asteroid?
Yes, 190 Ismene is described as a large outer-belt asteroid. Its dark P-type surface means it reflects relatively little sunlight, so size and brightness should not be confused.
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