Jupiter has a radius of 71,492 km acrossthe equator, which is 11.2 times that of Earth. It is less from pole to pole whichmakes the planet noticeably flattened.
Jupiter’s sidereal period of rotation is 9 hours 56 minutes referenced to the stars. For an object more than ten times larger than Earth, it takes less than half the time to spin once.
Jupiter orbits the Sun at an average distance of 5.2 A.U. and takes 11.86 years to complete one revolution.
Jupiter is all atmosphere, pretty much. It consists of 90% hydrogen and 10% helium, by volume. There are traces of some organic compounds which give the clouds their color
Strongest of all planets. It is thought to be generated by a layer of the interior consisting of liquid metallic hydrogen.Intense radiation zones surround the Jupiter has a metallic hydrogen layer, we think, which might be responsible for the planet's huge magnetic field. The magnetic field traps solar wind particles and makes for a very exciting environment around the planet. Here is how it might sound.
The ring of Jupiter is a dusty ring, invisible from Earth. It seems to consist of ground-up asteroid dust. It was first imaged by Voyager I in 1979. Different parts of the ring have different sized particles, giving the ring system a somewhat complicated structure, as seen in these images.
At last count, Jupiter has 67 moons. The four big ones ( Io, Europa, Ganymede and Callisto ) were discovered by Galileo. Here's a java applet that will show you the current alignment of these four moons. Some of the remaining moons might be captured minor planets. Jupiter's ring, seen in these images, consists of fine dust particles probably knocked off the inner moons.