Neptune's Atmosphere: Composition, Climate & Weather
2012年12月14日 · 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...
Neptune - NASA Science
More than 30 times as far from the Sun as Earth, Neptune is not visible to the naked eye. The planet’s blue color comes from methane in its atmosphere, which absorbs red wavelengths of light, but allows blue ones to be reflected back into space – very much like its neighbor, Uranus. Neptune was the first planet located using math.
Neptune Facts - Science@NASA
Neptune's atmosphere is made up mostly of hydrogen and helium with just a little bit of methane. Neptune's neighbor Uranus has a similar makeup; the methane absorbs other colors but reflects blue, giving these ice giants their similar hue.
Neptune - Wikipedia
Because of its great distance from the Sun, Neptune's outer atmosphere is one of the coldest places in the Solar System, with temperatures at its cloud tops approaching 55 K (−218 °C; −361 °F). Temperatures at the planet's centre are approximately 5,400 K (5,100 °C; 9,300 °F).
In Depth | Neptune – NASA Solar System Exploration
Neptune's atmosphere is made up mostly of hydrogen and helium with just a little bit of methane. Neptune's neighbor Uranus is a blue-green color due to such atmospheric methane, but Neptune is a more vivid, brighter blue, so there must be an unknown component that causes the …
Neptune, planet of wind and ice | The Planetary Society
Like Jupiter and Saturn, Neptune’s atmosphere consists mostly of hydrogen and helium, but it also has methane that absorbs red light, giving it a deep blue hue. Beneath the atmosphere lies an ocean of water, ammonia, and methane, squeezed by intense pressures into a …
Neptune | Planet, Moons, Rings, Temperature, Mass, Diameter,
2024年12月14日 · Neptune’s outer atmosphere is composed predominantly of hydrogen and helium, contributing to 98 percent of the atmospheric molecules. Most of the remainder consist of methane gas. Hydrogen and helium are nearly invisible, but the presence of methane gives Neptune a bluish cast.
Neptune Fact Sheet - NSSDCA
Surface Pressure: >>1000 bars Temperature at 1 bar: 72 K (-201 C) Temperature at 0.1 bar: 55 K (-218 C) Density at 1 bar: 0.45 kg/m 3 Wind speeds: 0-580 m/s Scale height: 19.1 - 20.3 km Mean molecular weight: 2.53 - 2.69 Atmospheric composition (by volume, uncertainty in parentheses) Major: Molecular hydrogen (H 2) - 80.0% (3.2%); Helium (He) -...
What is the Atmosphere of Neptune Like? - Universe Today
2008年11月27日 · The atmosphere of Neptune is similar to all the large planets in the Solar System; it mostly consists of hydrogen and helium, with trace amounts of methane, water, ammonia and other ices.
Neptune’s Atmosphere: Composition, Climate & Weather
2021年10月15日 · The eighth and last planet in the solar system, Neptune has an atmosphere more comparable with Uranus than with Saturn and Jupiter. The two most distant planets boast atmospheres dominated by ices. But even with a chill in the air, Neptune still manages to host some of the most extreme and violent weather in the solar system.