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Io (/ ˈ aɪ. oʊ /), or Jupiter I, is the innermost and second-smallest of the four Galilean moons of the planet Jupiter.Slightly larger than Earth's moon, Io is the fourth-largest moon in the Solar System, has the highest density of any moon, the strongest surface gravity of any moon, and the lowest amount of water by atomic ratio of any known astronomical object in the Solar System.
Mongibello Mons and other topographic features on Io's leading hemisphere. More than 135 mountains have been identified on the surface of Jupiter's moon Io. [1] Despite the extensive active volcanism taking place on Io, most mountains on Io are formed through tectonic processes.
Created using data collected by the JunoCam imager aboard NASA's Juno spacecraft, this animation is an artist's concept that shows a view of a mountain on the Jovian moon Io. The data was recorded during close flybys of the moon in December 2023 and February 2024.
"Steeple Mountain" on moon Io (animation; JunoCam; 0:14; 18 April 2024) Paterae and mountains are observed to appear near each other on Io. [7] This observation indicates that these two structures are somehow related. [2] As Io has strong tidal heating and very violent volcanic activities, the interior of Io should be vigorously convecting).
Global image of Jupiter's moon Io acquired by Juno's JunoCam camera on 30 December 2023. The Juno spacecraft was launched in 2011 and entered orbit around Jupiter on July 5, 2016. Juno ' s mission is primarily focused on improving our understanding of Jupiter's interior, magnetic field, aurorae, and polar atmosphere. [88]
On Io, catenae / k ə ˈ t iː n ə / (crater chains, sg. catena) are named after sun gods in various mythologies.In 2006, the use of the term catena was discontinued in favor of the patera / ˈ p æ t ə r ə / (plural paterae / ˈ p æ t ə r iː /).
This is a list of named regions on Jupiter's moon Io. These names have been approved for use by the International Astronomical Union . The features listed below represent a subset of the total known bright regions on Io's surface with many currently not having an officially approved name.
Tvashtar Paterae compose an active volcanic region of Jupiter's moon Io located near its north pole. It is a series of paterae, or volcanic craters. It is named after Tvashtar, the Hindu god of blacksmiths. [1] Tvashtar was discovered in IRTF images on November 26, 1999, several hours after a Galileo flyby.