Presentation on theme: "The Outer Planets Also called the Jovian planets or gas giants."— Presentation transcript:
The Outer Planets Also called the Jovian planets or gas giants.
Similarities Mainly composed of gas Somewhere at the center is a core of liquid metals. The outer planets all have numerous moons & rings All of the outer planets’ atmospheres contain hydrogen and helium
Galilean Moons of Jupiter Seen by Galileo with his telescope.
Jupiter Mass = 300x Earth’s mass. Jupiter has the most moons – 63+ Jupiter is one of the brightest objects in the sky Has a very stormy atmosphere. – One major storm, the Great Red Spot, is as big as the Earth.
Neptune’s winds are the fastest of any planets in the Solar System –Can reach more than 1,200 mph. Neptune and Uranus contain ices of water, ammonia, and methane. The methane in Neptune and Uranus is what gives the planets their blue color.
The 3 criteria to be a full-sized planet are: 1- It is in orbit around the Sun. 2- It has sufficient mass to assume hydrostatic equilibrium (a nearly round shape). 3- It has "cleared the neighborhood" around its orbit.