In which year was the moon, on which the volcanic feature Reiden Patera is located, discovered ?
Reiden Patera Reiden Patera is a volcanic feature on Jupiter's moon Io. It was first detected by the "Galileo" SSI Team during the spacecraft Galileo's first orbit around Jupiter, initially detected as a hotspot. It was once thought that the activity there had stopped or waned below the limits of the spacecraft's Solid State Imager or Near-Infrared Mapping Spectrometer. However, it was noticed in 2002 that Reiden Patera has darkened considerably since the 24th orbit of "Galileo". It has been spouting bright red pyroclastic deposits of its own. It is located at and is 70 kilometers in diameter. It is named after a Japanese thunder god ("Raijin" in current English nomenclature). Asha Patera can be found to the east, and Kami-Nari Patera can be found to the north.
Equatorial ridge Equatorial ridges are a feature of at least three of Saturn's moons: the large moon Iapetus and the tiny moons Atlas and Pan. They are ridges that closely follow the moons' equators. They appear to be unique to the Saturnian system, but it is uncertain whether the occurrences are related or a coincidence. All three were discovered by the "Cassini" probe in 2005. Daphnis also appears to have such a ridge.