They are believed to be hundreds of kilometers in diameter, and there are very many of them in the Otyun and Gubai belts.Ice dwarfs are not the official classification recognized by the International Astronomical Union, and they cover more categories than the official classification:QB1 like objectsandSmall Celestial Bodies of the PlutoMore scope.
EN: Alan Stern of the Southwest Research Institute believes that there are many ice dwarfs that we have not found, besides the moon Triton of Neptune.Stern said that three ice dwarfs with a diameter of 1000 to 2000 kilometers had obvious impact marks.Uranus may have been hit by an ice dwarf to make its rotation axis overturn. Triton, the largest satellite of Neptune, may also have been hit by an ice dwarf.