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Which dwarf planet is the largest by diameter?
Quick Answer
Pluto is the largest known dwarf planet by diameter, at about 2,377 kilometers across. It is slightly larger than Eris by diameter, though Eris is more massive.
The Full Story
Pluto is the largest known dwarf planet by diameter, measuring about 2,377 kilometers across. It is slightly larger than Eris in size, although Eris is denser and more massive. Pluto was reclassified from planet to dwarf planet in 2006 by the International Astronomical Union. Its geology, atmosphere, and moons continue to make it one of the most studied objects in the Kuiper Belt.
Key Facts
1.Diameter: about 2,377 kilometers
2.It is the largest dwarf planet by diameter
3.Reclassified in 2006
YouTube Angle
Suggested video title for this topic:
"The biggest dwarf planet used to be the ninth planet."
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