It was an incredibly large rotating storm system with winds of up to 1,500 miles per hour, the strongest winds recorded on any planet. The Great Dark Spot in the southern atmosphere of Neptune was first discovered in 1989 by the Voyager 2 spacecraft. Neptune distance from the Sun and orbital eccentricity Comparison The NASA/ESA Hubble Space Telescope has also studied this planet, as have a number of ground-based telescopes. It returned the first close-up images of the Neptune system. In 1989, the Voyager 2 spacecraft swept past the planet. Only one spacecraft has flown by Neptune.It is probably the coldest world in the solar system. It was likely captured by the gravitational pull of Neptune. The most interesting moon is Triton, a frozen world that is spewing nitrogen ice and dust particles out from below its surface. They are likely made up of ice particles mixed with dust grains and possibly coated with a carbon-based substance. Neptune has a very thin collection of rings.One of the largest storms ever seen was recorded in 1989. Large storms whirl through its upper atmosphere, and high-speed winds track around the planet at up 600 meters per second. High, thin clouds drift in the upper atmosphere.
The methane absorbs red light, which makes the planet appear a lovely blue. The atmosphere of Neptune is made of hydrogen and helium, with some methane.The inner core of the planet is made of rock. They enclose a layer of water, ammonia and methane ice. Below its heavy atmosphere, Uranus is made of layers of hydrogen, helium, and methane gases. Neptune is the smallest of the ice giants.ĭespite being smaller than Uranus, Neptune has a greater mass.This is because Neptune is not solid body. Its equatorial clouds take 16 hours to make one rotation. Neptune spins on its axis very rapidly.It was named after the Roman god of the sea. Its position was determined using mathematical predictions. It is not visible to the naked eye and was first observed in 1846. Neptune is named after the Roman god of the sea.A year on Neptune lasts 165 Earth years.Neptune is the most distant planet from the Sun.
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