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What is the mass of neptune?

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The mass of the Earth is 6 x 1024 kg. In other words, the mass of Neptune is 17 times the mass of the Earth. Neptune is actually more massive than Uranus. Uranus has only 14.5 times the mass of Earth, while Neptune has 17 times the mass of Earth. read more

Neptune is actually more massive than Uranus. Uranus has only 14.5 times the mass of Earth, while Neptune has 17 times the mass of Earth. Of course, the mass of Neptune is pretty tiny compared to some of the more massive objects in the Solar System. read more

Mass and Density of Neptune. Of the four giant planets, Neptune is the smallest. Its diameter is roughly 30, 755 miles. This is the measurement taken from a point in the atmosphere where the pressure does not exceed 1 bar. Neptune is four times bigger than earth but is just slightly smaller than Uranus. read more

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Mass of Neptune
www.universetoday.com

Neptune Fact Sheet
nssdc.gsfc.nasa.gov