| Harpalyke | |
|---|---|
| |
| Name of satellite | Harpalyke |
| Planet of origin | Jupiter |
| Discovered by | Mauna Kea Observatory |
| Date of discovery | 23 November 2000 |
| Surface color | Gray |
| Alternate name(s) | Jupiter XXII |
Harpalyke, also known as Jupiter XXII, is a retrograde irregular-shaped satellite belonging to the outer planet of Jupiter. It was discovered by Eugene A. Magnier, Yanga R. Fernandez, Scott S. Sheppard, and David C. Jewett on November 23, 2000 at the Mauna Kea Observatory. It belongs to the Ananke group, with Ananke being the largest in the group. Harpalyke takes about 620 Earth days to orbit Jupiter once. It is about 4 kilometers in diameter.
Formation[]
Since it is part of the Ananke group, it was formed from the remains of the formation of the Ananke group. Ananke was a stray asteroid from the Asteroid belt pulled in by Jupiter's gravitational pull. Ananke suffered numerous collisions. The left over debris became the satellites of the Ananke group, with the largest being Ananke.
Surface[]
All of the satellites in the Ananke group have gray or light gray surfaces, meaning that Harpalyke is gray too.