Web20 Apr 2016 · Neptune’s “surface” can therefore be said to be composed of about 80% hydrogen and 19% helium, with a trace amount of methane. The surface layer is also permeated by roving bands of clouds ... WebNeptune has a radius of 24.764 km / 15.387 mi, and a diameter of 49.244 km / 30.598 mi. It is the fourth-largest planet in the Solar System but at the same time the smallest of the giants. Ice Giants Composition The ice giants have an interior composition that consists primarily of what astronomers call ‘Ices’.

In Depth Neptune – NASA Solar System Exploration

http://www.differencebetween.net/miscellaneous/difference-between-neptune-and-poseidon/ WebNeptune is the smallest of the four giant outer planets. The diameter at its equator is about 30,775 miles (49,528 kilometers), as measured at a level of the atmosphere where the pressure is 1 bar (the pressure at sea level on Earth). This makes it slightly smaller than Uranus but nearly four times as big as Earth. david bowie alamo hero

Super-Earth, mini-Neptune or sub-Neptune?

Web14 Sep 2015 · With a mean radius of 24,622 ± 19 km, Neptune is the fourth largest planet in the Solar System and four times as large as Earth. But with a mass of 1.0243×10 26 kg – which is roughly 17 times... Web23 Mar 2024 · It's more than 30 times as far from the Sun as Earth is. Neptune is very similar to Uranus. It's made of a thick soup of water, ammonia, and methane over an Earth-sized solid center. Its atmosphere … Web6 Oct 2024 · Super-Earths are larger than Earth but smaller than Neptune. They’re generally (but not always) between 1.2 and 2 Earth-radii. Super-Earths are defined primarily be their mass, however, not ... gas four wheelers at walmart