A moon like a planet is a compacted mass and has gravity. If it is in a ring then most likely over time it will sweep out a void in the ring by collecting all the remaining material that orbits with it.
A planetary ring
A planetary ring.
Planetary Nebula
A ring around the moon is not mentioned in the bible.
Saturn is the planet with the most notable planetary ringsThe planetary ring is a ring of cosmic dust and other small particles orbiting around a planet in a flat disc-shaped region.There are other three gas giants of the Solar System (Jupiter, Uranus and Neptune) also possess ring systems of their own.
The gears in a planetary gear system are the drive gear, ring gear, and planetary gear.
A breathable atmosphere.
Rings around a planet are caused by a collision. This collision could occur from a moon crashing into a moon, a moon crashing into the planet, an asteroid crashing into a moon or an asteroid crashing into the planet. The resulting debris from the collision gets trapped in the planetary orbit, and hence, creates a ring system.
Shepherd Satellite is referring to a small moon that orbits closely to a planetary ring. Shepherd satellites can be seen mostly in Saturn.
Shepherd Moons are to be found within the ring system of the planer Saturn. However it is thought that the long term maintenance of any planetary ring system would require shepherd moons.
A planetary ring
Saturn has a bigger ring system than any other known planet. It's ring system was made of a small moon ripped apart by Saturn's gravitational pull.
Both moons and rings are objects circling a planet. The difference is that the mass of dust or ice in a ring is not concentrated into a single object. The dynamics of a ring system keep the smaller chunks (from microscopic to truck-sized) from agglomerating into a moon. Some planetary rings are thought to have formed from the partial breakup of small, icy moons.
A planetary ring.
Planetary Nebula
No each ring doesn't have a moon
Jupiter, Saturn,Uranus,and Neptune have a ring and a moon.