planeetoiden
Planeetoiden is a term that has been used historically to refer to celestial bodies that orbit the Sun and are not comets. This classification has evolved over time as our understanding of the solar system has grown. Initially, the term was applied to objects that were observed to have a planetary appearance but were not among the known planets.
The most prominent group of objects historically referred to as planetoids are found in the asteroid belt,
The term planetoid has also been used more broadly to encompass any minor planet or even trans-Neptunian