At least 178
There are a total of 214 moons orbiting planets in our solar system.
We don't know if it has any moons. We currently do not have the technology to detect moons orbiting planets outside of our solar system.
Mercury and Venus do not have moons.
169 moons.
There are 180 moons in our solar system.
There are about 100 billion stars in the Milky Way Galaxy. We only know of moons in the solar system - 169 of them.
There are six.
Mercury is a planet in our solar system that does not have any moons.
Jupiter has 63 confirmed moons. See link for further information about them.
Mercury and venus
Two of them
13