Juno Mission Reveals Jupiter's True Dimensions
NASA's Juno spacecraft has provided refined measurements indicating Jupiter is slightly smaller and less oblate than previously thought.
Recent data from NASA's Juno spacecraft have led scientists to revise Jupiter's dimensions, revealing the gas giant is marginally smaller and less oblate than earlier estimates suggested.
Utilizing radio signals from Juno, researchers determined that Jupiter's polar radius is approximately 41,534 miles (66,842 kilometers), about 7.5 miles (12 kilometers) less than prior measurements. The equatorial radius was found to be 44,421 miles (71,488 kilometers), a reduction of 2.5 miles (4 kilometers) from earlier figures.
These refinements enhance models of Jupiter's internal structure and may aid in understanding gas giants beyond our solar system.
"Textbooks will need to be updated," said Yohai Kaspi, a planetary scientist at the Weizmann Institute of Science in Israel. "The size of Jupiter hasn't changed, of course, but the way we measure it has."
The Juno mission, which arrived at Jupiter in 2016, continues to provide valuable insights into the planet's composition and dynamics.