Neptune - Wikipedia
Neptune's internal structure resembles that of Uranus. Its atmosphere forms about 5 to 10% of its mass and extends perhaps 10 to 20% of the way towards the core. Pressure in the atmosphere reaches about 10 GPa, or about 10 5 atmospheres. Increasing concentrations of methane, ammonia and water are found in the lower regions of the atmosphere. [30]
Neptune Facts - Science@NASA
Structure. Neptune is one of two ice giants in the outer solar system (the other is Uranus). Most (80% or more) of the planet's mass is made up of a hot dense fluid of "icy" materials – water, methane, and ammonia – above a small, rocky core. Of the giant planets, Neptune is the densest.
Neptune | Planet, Moons, Rings, Temperature, Mass, Diameter,
5 days ago · Neptune, third most massive planet of the solar system and the eighth and outermost planet from the Sun. Because of its great distance from Earth, it cannot be seen with the unaided eye. With a small telescope, it appears as a tiny, faint blue-green disk. It …
In Depth | Neptune – NASA Solar System Exploration
Neptune is one of two ice giants in the outer solar system (the other is Uranus). Most (80% or more) of the planet's mass is made up of a hot dense fluid of "icy" materials – water, methane, and ammonia – above a small, rocky core.
All About Neptune | NASA Space Place – NASA Science for Kids
Nov 8, 2024 · Structure and Surface. Neptune is encircled by six rings. Neptune, like Uranus, is an ice giant. It’s similar to a gas giant. It is made of a thick soup of water, ammonia, and methane flowing over a solid core about the size of Earth. Neptune has a thick, windy atmosphere.
What is Neptune Made Of? - Universe Today
May 24, 2017 · Structure and Composition: Neptune, like the rest of the gas giant planets in the Solar System, can be broken up into various layers. The composition of Neptune changes depending on which of...
Neptune - NASA Science
Dark, cold and whipped by supersonic winds, giant Neptune is the eighth and most distant major planet orbiting our Sun. More than 30 times as far from the Sun as Earth, Neptune is not visible to the naked eye.
What is Neptune Made Of? | Space
Dec 14, 2012 · Beneath the clouds. The first layer of Neptune is its icy atmosphere, which is mostly hydrogen and helium. The bluish coloration comes from traces of methane in the air, but the planet is...
Neptune Fact Sheet - NSSDCA
Dipole field strength: 0.142 Gauss-Rn 3 Dipole tilt to rotational axis: 46.9 degrees Longitude of tilt: 288 degrees (IAU convention) Dipole offset: 0.485 Rn Surface (1 Rn) field strength: ~0.1 - 0.9 Gauss. Rn denotes Neptunian model radius, here defined to be 24,765 km.
Neptune facts and information - National Geographic
Mar 28, 2019 · Neptune is just one of two ice giants in our cosmic family, along with Uranus. It's blanketed in an atmosphere of hydrogen and helium, with traces of methane, water, and ammonia.