What is on the moon named Io?
Io (/ˈaɪ. oʊ/), or Jupiter I, is the innermost and third-largest of the four Galilean moons of the planet Jupiter….Io (moon)
| Discovery | |
|---|---|
| Apoapsis | 423400 km (0.002830 AU) |
| Mean orbit radius | 421700 km (0.002819 AU) |
| Eccentricity | 0.0041 |
| Orbital period | 1.769137786 d (152853.5047 s, 42.45930686 h) |
What is special about Io moon?
Io is the only world other than Earth that is observed to have active volcanoes and is the most geologically and volcanically active object in the solar system. Volcanic plumes can rise 300 km (190 miles) above the surface.
Why is the Io moon named Io?
Io is named after a maiden who was loved by Zeus. In the Greek myth, Zeus turned her into a heifer in an attempt to hide her from his jealous wife, Hera. Io was discovered by Galileo Galilei and Simon Marius in 1610 and is one of the four Galilean satellites.
Who named Io moon?
Galileo
Io, also called Jupiter I, innermost of the four large moons (Galilean satellites) discovered around Jupiter by the Italian astronomer Galileo in 1610. It was probably also discovered independently that same year by the German astronomer Simon Marius, who named it after Io of Greek mythology.
What does Io look like?
Characteristics of Io The interior of Io is composed of an iron or iron sulfide core and a brown silicate outer layer, giving the planet a splotchy orange, yellow, black, red, and white appearance. Based on data from scientific computer models, Io formed in a region around Jupiter where water ice was plentiful.
How old is Io?
about 4.5 billion years old
Io by the numbers Age: Io is about 4.5 billion years old, about the same age as Jupiter.
How was Io discovered?
The Discovery of Io Io was the first of Jupiter’s moons discovered by Galileo Galilei on Jan. 8, 1610. Several spacecraft have flown by Jupiter and its moons. Pioneer 10 arrived first, in 1973, followed by Pioneer 11 in 1974.
Does Io have ice?
Scientists have found water molecules frozen in the surface ices of Jupiter’s moon Io. The Voyager spacecraft discovered active volcanoes on Io more than a decade ago. Patches of sulfur and sulfur dioxide frosts cover the satellite. The water ice is combined with the more abundant sulfur dioxide ice on Io’s surface.
What was Io named after?
Io, also called Jupiter I, innermost of the four large moons (Galilean satellites) discovered around Jupiter by the Italian astronomer Galileo in 1610. It was probably also discovered independently that same year by the German astronomer Simon Marius, who named it after Io of Greek mythology.
What color is Io?
Most of Io’s surface has pastel colors, punctuated by black, brown, green, orange, and red units near the active volcanic centers. A false color version of the mosaic has been created to enhance the contrast of the color variations.