Presentation on theme: "By : Amanda Hoang and Nicole Tien Neptune is made mostly of gasses, water and minerals. The first layer is made of liquid hydrogen. The second layer."— Presentation transcript:
By : Amanda Hoang and Nicole Tien
Neptune is made mostly of gasses, water and minerals. The first layer is made of liquid hydrogen. The second layer is water. Lastly, Neptune has a very rocky core made of nickel, iron and silicates.
Neptune has 13 moons but is very difficult to see with the naked eye from Earth. Neptunes inner moons are Naiad, Thalassa, Despina and Galatea. Neptunes outer moons are Larissa, Proteus, Triton and Nereid. Some others are Caliban and Sycorax.
Neptune's atmosphere is 80% hydrogen, 19% helium and 1% methane. The methane gives Neptune its blue color. The upper atmosphere are clouds of ammonia and hydrogen sulfide. The lower atmosphere is made of hydrogen, helium and methane gasses. Neptune's atmosphere is 80% hydrogen, 19% helium and 1% methane. The methane gives Neptune its blue color. The upper atmosphere are clouds of ammonia and hydrogen sulfide. The lower atmosphere is made of hydrogen, helium and methane gasses.
Scientists believe that under Neptunes atmosphere there is either ice or liquid water. The climate is very cold and is approximately -200° Celsius. Neptunes weather has a lot of storms with winds at nearly 600 mph.
After the discovery of Uranus, its orbit was not as it should be according to Newtons laws. There for, another planet was predicted. Neptune was discovered by Galle and dArrest on September 23,1846. On 1613, Galileo saw Neptune when it was near Jupiter. Galileo thought Neptune was a star.
There has only been one visit to Neptune. The planet was visited by the Voyager2 on August 25,1989. Much of what we know about Neptune came from Voyager2 and HST. That means we dont know a lot about the planet!
One year on Neptune takes Earth years! Neptunes volume is 57 times more than Earth. One day on Neptune is 0.75 Earth days. The average temperature is -370° F. Neptune is 2,794 million miles away from the Sun. Neptune is the 8 th planet and last in our solar system.
The moon Triton reminds people of a cantaloupe. Since people discovered that Neptune has 13 moons, they are the newest moons discovered since Neptune's 4 inner moons are Naiad, Thalassa, Galatea and Despina. Proteus is Neptunes second largest moon. Nereid was discovered in 1949.
Information for this power point was from : burro.astr.cwru.edu