describe the last planet?
Smaller than uranus, massive, dense,  radiates more internal heat, has 14 known satellites. It has the largest satellite called Triton, it is orbit by several minor planets Neptune trojans,
Solar System
Neptune (), though slightly smaller than Uranus, is more massive () and hence more dense. It radiates more internal heat, but not as much as Jupiter or Saturn. Neptune has 14 known satellites. The largest, Triton, is geologically active, with geysers of liquid nitrogen. Triton is the only large satellite with a retrograde orbit. Neptune is accompanied in its orbit by several minor planets, termed Neptune trojans, that are in 1:1 resonance with it.
which is not part of inner solar system The outer region of the Solar System. It has giant planets and their large moons. The centaurs and many short-period comets also orbit in this region. name a few of the planets in the outer region? Jupiter, Saturn, Uranus and Neptune.
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Solar System [SEP] Neptune
Neptune (), though slightly smaller than Uranus, is more massive () and hence more dense. It radiates more internal heat, but not as much as Jupiter or Saturn. Neptune has 14 known satellites. The largest, Triton, is geologically active, with geysers of liquid nitrogen. Triton is the only large satellite with a retrograde orbit. Neptune is accompanied in its orbit by several minor planets, termed Neptune trojans, that are in 1:1 resonance with it.