Cressida is a moon of which planet in the Solar System
Cressida (moon) for which the mass has been directly measured. Cressida may collide with Desdemona within the next 100 million years. Explanatory notes Citations Cressida (moon) Cressida ( , ) is an inner satellite of Uranus. It was discovered from the images taken by "Voyager 2" on 9 January 1986, and was given the temporary designation S/1986 U 3. It was named after Cressida, the Trojan daughter of Calchas, a tragic heroine who appears in William Shakespeare's play "Troilus and Cressida" (as well as in tales by Geoffrey Chaucer and others). It is also designated Uranus IX. Cressida belongs to the Portia
Stability of the Solar System essentially the distance from sun to earth). These are now known as the Kirkwood gaps. Some asteroids were later discovered to orbit in these gaps, but their orbits are unstable and they will eventually break out of the resonance due to close encounters with a major planet. Another common form of resonance in the Solar System is spin–orbit resonance, where the period of spin (the time it takes the planet or moon to rotate once about its axis) has a simple numerical relationship with its orbital period. An example is our own Moon, which is in a 1:1 spin–orbit resonance