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Depends what exactly you mean by "all planets", and by "the sun". The planets we commonly talk about, rotate about our Sun. At least 200 planets are known that rotate around other stars (i.e., other suns). Planetary sized objects are also known that don't go around any star - but by definition, they are no planets, because the standard definition of a planet includes rotating around a star!

In 2006 the general assembly of the international astronomical union (IAU) passed a resolution which defined planets within our solar system as celestial bodies that orbit around the Sun, has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes nearly round shapes, and has "cleared the neighborhood around its orbit". This leaves eight planets in our solar system. Pluto is no longer a planet due to the latter requirement (which is because Pluto is part of the Kuiper Belt which also has many other objects orbiting near it).

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15y ago

What else can I help you with?