I got all of my information from wikipedia
It is the eight planet from the sun also meanining that it is the coldest. It is invisible to the naked eye. Neptune is my favorite planet which is why i picked it. Neptune has a bunch of moons i will name the now. Triton,nereid,proteus,larissa,galatea,naiad,thalassa,despina,neso,halimede,psamethe,laomedeia,sao. There are more but i dont have enough room on this page.
Neptune is not visible to the unaided eye and is the only planet in the Solar System found by mathematical prediction rather than by empirical observation. Unexpected changes in the orbit of Uranus led Alexis Bouvard to deduce that its orbit was subject to gravitational perturbation by an unknown planet. Neptune was subsequently observed with a telescope on 23 September 1846 by Johann Galle within a degree of the position predicted by Urbain Le Verrier. Its largest moon, Triton, was discovered shortly thereafter, though none of the planet's remaining known 14 moons were located telescopically until the 20th century. The planet's distance from Earth gives it a very small apparent size, making it challenging to study with Earth-based telescopes. Neptune was visited by Voyager 2, when it flew by the planet on 25 August 1989.
it takes Neptune 18 hours to rotate once. it takes 164.79 years to orbit the sun once. Neptune is 15,299 miles big. earth is 3,959 miles big. the mass of Jupiter is 17 times the mass of earth. the atmosphere of it is about the same as all large planets. -218 degrees celcius. this is the best earth based picture
this is the best hubble picture
no space crafts have visited Neptune.
Neptune is a gas giant.its biggest moon Is triton. discovered by urbain le verrier. Neptune was not known to the ancients.
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Public - 9/27/16, 6:55 PM