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Transcript
Weather Introduction Neptune is the eighth and farthest planet from the sun. It is the fourth largest planet by diameter, and the third by mass. Neptune is also the most dense planet. It completes an orbit on average every 164.79 years. The average distance between Neptune and the sun is 4.50 billion km. (about 30.1 AUs) Facts The elliptical orbit of Neptune is 1.77°. The gravity is 11.15 m/s². Neptune’s atmosphere is made up predominately of hydrogen and helium, with some methane. Methane is part of what gives Neptune its beautiful blue tint, as it absorbs red light and reflects bluer colors. Neptune is one of the coldest planets, approximately -218 degrees. Has the wildest and strangest weather in the entire Solar System. Neptune has huge storms with extremely high winds. The atmosphere has dark spots, which come and go, and bright cirrus-like clouds, which change rapidly. Taryn Stachoski Neptune Moons Neptune has fourteen known moons. The largest by far, including more than 99.5% of the mass in the orbit around Neptune, and the only one massive enough to be spheroidal, is Triton. Triton is close enough to Neptune to have become locked into a synchronous rotation. Storms have been spotted swirling around its surface and freezing winds that blow about ten times faster than hurricanes on Earth, making it the windiest planet. Fun Facts The exploration of Neptune has only begun with one explorer, Voyager 2. The closest approach to Neptune occurred on August 25th, 1989. The spacecraft verified the existence of a magnetic field surrounding the planet and discovered that the field was offset from the center and tilted in a manner similar to the field around Uranus. Voyager 2 revealed that Neptune’s atmosphere was very dynamic, Even though it receives only 3% of the sunlight Jupiter receives. Neptune is a large planet, nearly four times the size of Earth. Neptune suffers from the most violent weather in our Solar System.