A moon is defined as a natural satellite that orbits a larger body--such as a planet--that, in turn, orbits a star. The moon is kept in its position both by the gravity of the object that it circles, as well as by its own gravity. Some planets are orbited by moons; some are not. Some dwarf planets--such as Pluto--possess moons. In fact, one of Pluto's moons, named Charon, is almost half the size of Pluto itself, and some planetary scientists think that Charon is really a chunk of Pluto that was torn off in a disastrous collision with another object very long ago. In addition, some asteroids are also known to be orbited by very small moons.
There is another aspect from the moon that is also going to improve your success and that is the moon rise and moon set. As a fishing angler you already know that some of the best times to fish are early in the morning and late in the evening the rising and the setting of the sun. Well the moon rise and moon set affects a fish's activity in the same way and since the moon has such a much stronger pull on the earth its effect is even more dramatic then the sunrise and sunset.
"Confirmation that the chemical energy for life exists within the ocean of a small moon of Saturn is an important milestone in our search for habitable worlds beyond Earth," commented Dr. Linda Spilker in the April 13, 2017 NASA Press Release. Dr. Spilker is Cassini project scientist at NASA's Jet Propulsion Laboratory (JPL) in Pasadena, California.