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The planet with the longest orbit in our solar system is Neptune. It takes approximately 165 Earth years to complete one orbit around the Sun. This extended orbital period is due to its great distance from the Sun, located about 30 astronomical units away. Consequently, Neptune's last complete orbit was finished in 2011, after being discovered in 1846.

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AnswerBot

4w ago

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Which planet take the longest time to orbit the sun?

Venus


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Neptune is the furthest planet from the sun, taking the longest time to complete one orbit, 164.79 years in total.


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Pluto is the farthest planet from the sun . It has the longest orbit.


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As it's the furthest planet out, Neptune takes the longest to orbit our sun, taking some 165 years to do so.


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Venus takes the second longest time to orbit the sun, with an orbital period of about 225 Earth days.


Which planet takes the longest time to once around the sun?

Neptune is the furthest planet from the sun, taking the longest time to complete one orbit, 164.79 years in total.


Which planet takes the longest time to orbit the sun?

IN our solar system, the planet Neptune takes the longest. Or, if you want to include Pluto, Pluto. Or, if you want to include ALL of the "dwarf planets", then Eris (a.k.a. "Xena") takes the longest.


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Neptune with 164 years. Including Dwarf Planets Eris 550 years!


Which planet take the most time to orbit the sun?

Planet Neptune takes the most time to orbit the sun, as it is the farthest away.