What is the planet that takes up 800 times as much room as earth its diameter is 24 times of Triton?

The planet you are referring to is likely Neptune. With a diameter approximately 24 times that of Triton, which is Neptune's largest moon, Neptune itself has a significantly larger volume, roughly 800 times that of Earth. Neptune is a gas giant located in the outer solar system and is known for its striking blue color due to methane in its atmosphere.