Sinope (moon) facts for kids
|Discovered by||S. B. Nicholson|
|Discovery date||July 21, 1914|
Mean orbit radius
|724.1 d (1.95 a)|
Average orbital speed
|Inclination||128.11° (to the ecliptic)
153.12° (to Jupiter's equator)
|2.6 g/cm3 (assumed)|
|0.014 m/s2 (0.001 g)|
Sinope did not get its present name until 1975; before then, it was simply known as Jupiter IX. It was sometimes called "Hades" between 1955 and 1975.
Sinope orbits Jupiter on a high eccentricity and high inclination retrograde orbit. The orbital elements are as of January 2000. They are changing a lot due to Solar and planetary perturbations. It is often believed to belong to the Pasiphaë group. However, given its mean inclination and different colour, Sinope could be also an independent object, captured independently, unrelated to the collision and break-up at the origin of the group. The diagram illustrates Sinope's orbital elements in relation to other moons of the group.
Sinope has an estimated diameter of 38 km (assuming an albedo of 0.04) The moon is red unlike Pasiphae which is grey.
Images for kids
Sinope (moon) Facts for Kids. Kiddle Encyclopedia.