Mercury has no satellites.
No satellites have been discovered yet in orbit around Mercury. As of now, the answer to the question is zero.
None of its moons has water.
mercurys period number is 80
Toledo Mercurys was created in 1947.
Toledo Mercurys ended in 1962.
mercurys surface material is made out of nothing but craters
There are 13 moons on Neptune.
There is no liquid water on the surface; it is far too cold. Pluto is so cold that even nitrogen freezes. The same goes for its moons.
31 Crateris was once mistaken to be a moon of Mercury but it is in fact a star about 1750 light years away. Mercury does not have any moons. See related link
Nibiru doesn't exist and neither do its moons.
if you have enough light and water