The largest known planet is HD 100546 b (also known as KR Muscae) and is 6.9 times as big as Jupiter (diameter)

This planet is approximately 320 light years away from Earth. It was discovered by astronomers using the VLT (Very Large Telescope) in Chile.

For more information, you can read this.

The largest known planet is HD 100546 b (also known as KR Muscae) and is 6.9 times as big as Jupiter (diameter)

This planet is approximately 320 light years away from Earth. It was discovered by astronomers using the VLT (Very Large Telescope) in Chile.

For more information, you can read this.