What is the Ananke group?

Q: What is the Ananke group?



A: The Ananke group is a group of moons of Jupiter that follow similar orbits to Ananke and may have a common origin.

Q: What are the characteristics of the Ananke group moons?



A: The Ananke group moons are retrograde non-spherical moons and their semi-major axes range between 19,300,000 and 22,700,000 km. Their inclinations range between 145.7° and 154.8°, and their orbital eccentricities range between 0.02 and 0.28.

Q: How many core members are there in the Ananke group?



A: There are seven core members in the Ananke group.

Q: Can you name the core members of the Ananke group from biggest to smallest?



A: The core members of the Ananke group from biggest to smallest are Ananke, Praxidike, Iocaste, Harpalyke, Thyone, Euanthe, and Euporie.

Q: What naming convention does the International Astronomical Union (IAU) reserve for all retrograde moons, including the members of the Ananke group?



A: The IAU reserves names ending in -e for all retrograde moons, including the members of the Ananke group.

Q: How far is the Ananke group from Jupiter?



A: The Ananke group is located at semi-major axes (distances from Jupiter) ranging between 19,300,000 and 22,700,000 km.

Q: What is the range of inclinations of the Ananke group moons?



A: The range of inclinations of the Ananke group moons is between 145.7° and 154.8°.

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