<P> There are 69 known moons of Jupiter . This gives Jupiter the largest number of moons with reasonably stable orbits of any planet in the Solar System . The most massive of the moons are the four Galilean moons , which were independently discovered in 1610 by Galileo Galilei and Simon Marius and were the first objects found to orbit a body that was neither Earth nor the Sun . From the end of the 19th century , dozens of much smaller Jovian moons have been discovered and have received the names of lovers or daughters of the Roman god Jupiter or his Greek equivalent Zeus . The Galilean moons are by far the largest and most massive objects to orbit Jupiter , with the remaining 65 known moons and the rings together comprising just 0.003 % of the total orbiting mass . </P>
<P> There are 69 known moons of Jupiter . This gives Jupiter the largest number of moons with reasonably stable orbits of any planet in the Solar System . The most massive of the moons are the four Galilean moons , which were independently discovered in 1610 by Galileo Galilei and Simon Marius and were the first objects found to orbit a body that was neither Earth nor the Sun . From the end of the 19th century , dozens of much smaller Jovian moons have been discovered and have received the names of lovers or daughters of the Roman god Jupiter or his Greek equivalent Zeus . The Galilean moons are by far the largest and most massive objects to orbit Jupiter , with the remaining 65 known moons and the rings together comprising just 0.003 % of the total orbiting mass . </P>
how many moons does jupiter have in its orbit
how many moons does jupiter have in its orbit
69
69