Dia (moon)

Dia, also known as Jupiter LIII, is the second-outermost known prograde irregular satellite of Jupiter. Provisionally known as S/2000 J 11, it received its name on March 7, 2015. It is named after Dia, daughter of Deioneus (or Eioneus), wife of Ixion. According to Homer, she was seduced by Zeus in stallion form; Pirithous was the issue.
The satellite is the only known small body in the Himalia group.
Dia is thought to be about 4 kilometres in diameter. It orbits Jupiter at an average distance of 12 million km in 274 days, at an inclination of 28° (to Jupiter's equator), and with an eccentricity of 0.21.
== Observational History ==
Dia was discovered by a team of astronomers from the University of Hawaii led by Scott S. Sheppard in 2000 with an observation arc of 26 days.
Initial observations were not followed up, and Dia was not observed for more than a decade after 2000. This apparent disappearance led some astronomers to consider the moon lost. One theory was that it had crashed into Himalia, creating a faint ring around Jupiter. However, it was finally recovered in observations made in 2010 and 2011.
== In the Timeline ==
=== Space Travel (1969) ===
In Space Travel, a ship is tested by travelling to and landing on various planets and moons in the Solar System. Jupiter was one of these planets that was used in the testing process so it is probable that some of its moons were used as well.
== Notes ==
* This page was originally taken from Wikipedia. Link: https://en.wikipedia.org/wiki/Dia_(moon)