In which year was the moon, on which the volcanic feature Reiden Patera is located, discovered ?
Io (moon) Io (Jupiter I) is the innermost of the four Galilean moons of the planet Jupiter. It is the fourth-largest moon, has the highest density of all the moons, and has the least amount of water of any known astronomical object in the Solar System. It was discovered in 1610 and was named after the mythological character Io, a priestess of Hera who became one of Zeus's lovers.
Nijland (crater) Nijland is a relatively small impact crater on the far side of the Moon. This is a relatively isolated crater that is surrounded by impacted surface with smaller craters. The nearest significant crater is Kurchatov to the northeast. More than 100 km the north of Nijland is a crater chain that runs from the south of Kurchatov towards the west-northwest. This chain is designated Catena Kurchatov.