kääbusplaneetideks
Kääbusplaneetideks, commonly translated as dwarf planets, are celestial bodies that orbit the Sun. They are distinguished from planets by a key criterion: they have not cleared their orbital neighborhood of other objects. This means that a dwarf planet shares its orbital path with other celestial bodies of comparable size. In all other respects, however, they are similar to planets. They are massive enough for their own gravity to pull them into a roughly spherical shape, a state known as hydrostatic equilibrium.
The International Astronomical Union (IAU) established the definition of a dwarf planet in 2006. Prior to this,
The discovery of more and more objects in the outer solar system, many of which approached the
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