Varuna

Varuna is a large trans-Neptunian object (TNO) located in the Kuiper Belt. It was discovered in 2000 by Robert S. McMillan during a Spacewatch survey at the Kitt Peak National Observatory.  

Here are some key facts about Varuna:

• Size: It's estimated to be about 900 kilometers in diameter, making it one of the largest TNOs.

• Orbit: Varuna has a nearly circular orbit, placing it in the classical Kuiper Belt.  

• Rotation: Varuna rotates very quickly, with a period of about 6.3 hours. This rapid rotation causes it to have a significantly elongated shape.

• Surface: Varuna's surface is relatively dark, suggesting that it's covered in dark organic compounds.  

Varuna's rapid rotation and elongated shape make it a unique object in the Kuiper Belt. It's also one of the brightest TNOs, making it a good target for further study.