Another Cassini Image

Now, for real; you're gonna tell me an object just 4.5 miles wide is going to be called a moon? Just because it is orbiting the planet. So by current definition anything orbiting a planet is considered a moon. I want Earth to have 2 moons, so I will take this old Coleman cooler, launch and affix it to orbit the earth, we now have 2 moons, Luna and Coleman. 


Actually, this is what is known as a Shepherd Moon. Saturn has several of these, Daphnis shown here in the Keeler Gap of the A Ring. As the moon orbits in the gap the gravity of the moon disrupts the rings as it passes.