distance from a source of light and how long it takes to orbit that source
A planet's rotation on its axis determines the length of its day.
Each year, the planet moves one full rotation around the sun, a movement. Each day, the planet revolves once, that's why in the day there is light because you are facing the sun, but when the earth revolves some more it is facing away from the sun eliminating the sun's light.
Mercury.
How long it spins on it's axis
Rotational time of the planets is random (the length of the planet's day), but the outer planets do spin faster than the inner planets.
The time it takes for any given planet to make one complete revolution around its sun determines the length of its year.
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A planet's rotation on its axis determines the length of its day.
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A planets year is the time it take to make one orbit of its star.
Usually, its mass determines its weight.
Usually the length. Sometimes, though the orientation determines which measurement is the length. Usually the length. Sometimes, though the orientation determines which measurement is the length. Usually the length. Sometimes, though the orientation determines which measurement is the length. Usually the length. Sometimes, though the orientation determines which measurement is the length.
84 known moons and planets
The time it takes to go around its solar systems sun.
Planets move in a few primary ways: rotation on their axis, which results in day and night cycles; revolution around a star, like the Sun, which determines their year length; and orbital motion within a solar system, influenced by gravitational forces. Additionally, planets may have other motions, such as precession or tidal forces, affecting their orbits.
Typically, this length of time is called a "year". Each planet's year is a different length than that of the other planets and increases as the planet is further from the Sun.
There is no constant year length for planets, dwarf type or otherwise. A planet's period (year length) depends entirely upon how long it take to orbit its star. Depending on the planet and its situation, that might take a matter of a few days, or a few years, or even centuries.