Earth has one very large, spherical moon believed to have been formed by a giant impact. Mars has two small, sorta potato-ical moons believed to have been captured. Suppose an otherwise earthlike planet started with one large, round moon like earth's, and then captured 4 small, potato-y moons like Mars', how would those moons need to be arranged to maintain orbital stability?
I'm interested in:
- Whether the large and small moons would all be in orbital resonance with each other, like Jupiter's inner moons
- Whether the moons would need to orbit in a certain order (e.g., big moon on the inside, little moons on the outside, or vice versa)
- Happy bonus: whether these moons could all be close enough or large enough for a person on the planet's surface to see their phases with the naked eye
- Sad bonus: whether this whole notion would actually be impossible and why