Neptune Fact

Topics: Neptune, Planet, Pluto Pages: 3 (839 words) Published: December 3, 2013
Body Paragraph 1: Basic Facts

Eigth and last planet in the solar system
Mean density (kg/m3):(Neptune)1,638 (Earth) 5,514 (Neptune/Earth Ratio) 0.297 Neptune, like Uranus, is one of the two outer planets known as an "ice giant." Made up of more ices than Jupiter and Saturn, the chilly body almost seems to be in a class by itself.

Body Paragraph 2: Atmosphere

Neptune's atmosphere is made up predominately of hydrogen and helium, with some methane. The methane is part of what gives Neptune its brilliant blue tint, as it absorbs red light and reflects bluer colors.  The planet has ten to a hundred times more methane, ethane, and ethyne at its equator than it does at its poles.  Made of ammonia ice, water ice, ammonia hydrosulfide, and methane ice The atmosphere of Neptune is made up of two main regions. Like the other three gas giants, the planet has no firm surface, so scientists have established that the "surface" is where the pressure is equal to the pressure found at sea level on Earth. From the Book

Body Paragraph 3: Storms
With winds of 1,305 miles per hour (2,100 km per hour), Neptune has some of the most extreme weather in the solar system. These winds travel three times as faster as those on Jupiter, and nine times faster as winds clocked on Earth. Such winds drive powerful storms.

When Voyager 2 observed the planet in 1989, it tracked a dark, oval storm that resembled Jupiter's Great Red Spot. The enormous weather pattern was about the size of Earth. The planet seems to boast an anticyclonic storm, with winds traveling backwards in high-pressure systems, every few years. Clouds are generated at or just below the tropopause region, which lies between the troposphere and the stratosphere. Neptune's weather is driven in part by heating from within its core.

Body Paragraph 4: Neptune’s Moons
The first four moons of Neptune, Naiad, Thalassa, Despina, and Galatea, are so close to Neptune...
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