Planet Neptune is a gas giant composed of hydrogen, helium, and methane. It has an average temperature of -214Β°C and is the only planet in the Solar System not visible to the naked eye. Its blue color is due to the methane in its atmosphere.
Neptune has 13 known moons, the largest of which is Triton. Triton is the only large moon in the Solar System with a retrograde orbit, meaning it orbits in the opposite direction of its planet's rotation.
Coloring pages of Neptune and its moons are a great way to learn more about this distant planet. Kids can explore the blue color of Neptune and the icy surface of Triton. They can also learn about the retrograde orbit of Triton and the other moons of Neptune.
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