Helike is one of Jupiter's moons. It is a member of the Pasiphae group, which is a cluster of irregular moons that orbit Jupiter in a retrograde direction, meaning they orbit the planet in the opposite direction of Jupiter's rotation. Helike was discovered in 2003 by a team of astronomers led by Scott S. Sheppard.
Here are some key details about Helike:
Size and Characteristics: Helike, like other moons in the Pasiphae group, is relatively small and irregularly shaped. These moons are believed to be composed of a mixture of rock and ice.
Orbit: Helike follows a retrograde orbit around Jupiter, which means it orbits the planet in the opposite direction of Jupiter's rotation. Its orbit is distant from Jupiter and inclined relative to the planet's equator.
Name Origin: Helike is named after a figure from Greek mythology. In Greek mythology, Helike was a nymph who was loved by Zeus. Her name is sometimes associated with "Helice," which was an ancient city in Greece.
Discovery: Helike was discovered in 2003 as part of ongoing efforts to identify and characterize Jupiter's many moons.
Exploration: As of my last knowledge update in September 2021, there haven't been any dedicated space missions to study Helike specifically. Most of the information about this moon and others in its group comes from observations made by telescopes and spacecraft like the Galileo orbiter.
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