NASA's Juno Mission Reveals Jupiter's Size and Shape More Accurately
Recent data from NASA's Juno spacecraft indicate that Jupiter is slightly smaller and more oblate than previously estimated, refining our understanding of the gas giant's dimensions.
Recent measurements from NASA's Juno spacecraft have refined our understanding of Jupiter's dimensions, revealing the planet is slightly smaller and more oblate than previously thought.
By analyzing radio occultation data from 13 flybys, scientists determined that Jupiter's equatorial diameter is approximately 8 kilometers (5 miles) less, and its polar diameter about 24 kilometers (15 miles) less, than earlier estimates.
These findings were achieved by tracking how Juno's radio signals bend as they pass through Jupiter's atmosphere, allowing researchers to create detailed maps of the planet's temperature and density.
The updated measurements indicate a polar radius of 66,842 kilometers (41,533 miles) and an equatorial radius of 71,488 kilometers (44,420 miles), with a margin of error of 0.4 kilometers (0.25 miles).
These refinements are significant for improving models of Jupiter's internal structure and for enhancing our understanding of gas giants beyond our solar system.