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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.
Sequence of five New Horizons images, taken over eight minutes, showing Io's volcano Tvashtar erupting material 330 kilometres (210 mi) above its surface. The discovery of volcanic plumes at Pele and Loki in 1979 provided conclusive evidence that Io was geologically active. [1]
These volcanic mountains are often smaller than the average mountain on Io, averaging only 1 to 2 km (0.6 to 1.2 mi) in height and 40 to 60 km (25 to 37 mi) wide. Other shield volcanoes with much shallower slopes are inferred from the morphology of several of Io's volcanoes, where thin flows radiate out from a central patera, such as at Ra Patera .
The volcanic feature, which has yet to be named, spans a colossal 40,000 square miles – dwarfing Io's previous record holder, a lava lake named Loki Patera that measured about 7,700 square miles ...
Five-image sequence acquired by New Horizons showing Io's volcano Tvashtar spewing material 330 km above its surface. The instrument suite includes four proposed instruments: [2] [3] Visible OpticaL Camera And Near-infrared Observer (VOLCANO) is a visible/near-infrared imager.
Jupiter moon Io volcanic activity (left: December 14, 2022; right: March 1, 2023) This is a list of named volcanic surface features 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 volcanic features on Io's surface with the ...
The thrust faulting and uplifting of large crust blocks on Io are interpreted by a model proposed by Schenk and Bulmer's 1998 paper. [3] In the model, Io's crust keeps recycling. Violent volcanic activity brings lava to the surface and older, buried layers are forced to subside. The old volcanic crust materials are compressed laterally as they ...
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.