Mass of Neptune compared to Earth
Neptune is 3.9 times bigger than earth. It has 17 times as much mass as Earth.
Size of Neptune compared to Earth
Neptune is the fourth largest planet in our solar sytem. The diameter of Neptune is 49,500km. That is 3.9 times bigger than Earth. You could put four Earths in Neptune.
How long does it take Neptune to orbit the Sun?
Neptune orbits the sun once every 164.79 Earth years.
How long does it take Neptune to rotate?
It takes Neptune 15 hours, 57 minuets, and 59 seconds to rotate.
The atmosphere of Neptune is similar to all the large planets in our solar system. It moslty consists of hydrogen and helium, with trace amounts of methane, water, ammonia, and lots of other ices.
Neptune does have gravity.
Neptune is the coldest planet in our solar system. Average of -200 degrees Celsius.
Neptune has 12 moons. They are Triton, Nereid, Naiad, Thalassa, Larissa, Proteus, and Galatea.
Best image from earth of neptune
Best space image of Neptune
I like this planet, because I like the color of it.
How many space crafts have visited Neptune
One space craft have visited Neptune, it was NASA's Voyager 2. This is the only space craft that has visited Neptune. It visited twice.
-Neptune is named after the Roman god of the sea Neptune.
-Neptune has the second largest gravity of any planet.
-The climate on Neptune is extremely active.
-Neptune can't be seen with an naked eye.
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Public - 9/27/16, 6:53 PM