Complex sentence: The planet's mass has been estimated to be more than 9 times that of Jupiter while its radius is 0.982 times that of Jupiter it would be a bit smaller if it was located at Jupiter's distance.
Split into simpler sentences: The planet's mass has been estimated to be more than 9 times that of Jupiter, while its radius is 0.982 times that of Jupiter. It would be a bit smaller if it was located at Jupiter's distance.