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Jupiter's Great Red Spot rotates counterclockwise, with a period of about 4.5 Earth days, [24] or 11 Jovian days, as of 2008. Measuring 16,350 km (10,160 mi) in width as of 3 April 2017, the Great Red Spot is 1.3 times the diameter of Earth. [21] The cloud-tops of this storm are about 8 km (5 mi) above the surrounding cloud-tops. [25]
He shares credit with Robert Hooke for the discovery of the Great Red Spot on Jupiter (ca. 1665). Around 1690, Cassini was the first to observe differential rotation within Jupiter's atmosphere. In 1672 he sent his colleague Jean Richer to Cayenne, French Guiana, while he himself stayed in Paris.
A well-known feature of Jupiter is the Great Red Spot, [103] a persistent anticyclonic storm located 22° south of the equator. It was first observed in 1831, [104] and possibly as early as 1665. [105] [106] Images by the Hubble Space Telescope have shown two more "red spots" adjacent to the Great Red Spot.
Jupiter’s striking Great Red Spot has puzzled astronomers for years. Now, they think they know just how old it is and how the cyclone formed in Jupiter’s atmosphere.
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Notable Jupiter impact events Event Date (UTC) Rough original size (meters) Latitude (°) Longitude (°) Discoverer(s) Aug 2023 event [2]: 2023/08/28 16:45
History of technology by type; List of science timelines; ... May 9 – Robert Hooke discovers Jupiter's Great Red Spot. [1] Biology
Jupiter's Great Red Spot was revealed as a complex storm moving in a counterclockwise direction. Other smaller storms and eddies were found throughout the banded clouds. [42] Voyager 2 returned images of Jupiter, as well as its moons Amalthea, Io, Callisto, Ganymede, and Europa. [3]