Upload
kellie-pitts
View
217
Download
0
Tags:
Embed Size (px)
Citation preview
Neptune was discovered on September 23, 1846 by Johann Galle
It was named after the Roman God of the Sea because of its color
We knew little about this Planet until 1989
America sent Voyager 2 past Neptune in 1989 and got photos from it and got our first glimpse of what Neptune really looked like
Neptune Is exactly 4.4 billion miles away from Earth Because Neptune orbits around the sun, its distance is constantly changing Neptune is 4,504,300,000 KM away from the sun
Neptune's diameter is about 30,755 miles
It 4x bigger then Earth
The density is 1.639g/cm
Mass is 10243x1026kg
Volume is 6.254x10km3
Neptune is a gaseous planet
• Neptune’s temp. at cloud top is -218 degrees Celsius
•Its average temperature it 200 degrees Celsius
Neptune consists of 80% hydrogen19%heliumAnd 1.5%methaneIts core is a rocky material surrounded by a layer of liquidThe mantle is most likely water with methane and ammonia, but mostly rock and water
Neptune’s atmosphere consist of mainly hydrogen and helium.
There have been trace amounts of methane, water, ammonia, and other ices.
Methane is what gives Neptune its bright blue color.
Its atmosphere consist of about 80% hydrogen and 19% helium, with 1% ammonia.
The light from Neptune is reflected from the Sun.
• Neptune has 13 moons
• Triton, Nereid, Naiad, Thalassa, Despina, Galatea, Larissa, Proteus, Halimede, Psamathe, Sao, Laomedeia, and Neso
• Neptune was named for the God of the sea so its moons were given names of lesser sea gods and nymphs
• Triton is the largest of all 13
• Triton has geysers that shoot ice 5 miles high, there is possible life under it’s ice
Neptune is far from Sun so receives a little amount of heat
Consists of molten rock and metal
No solid surface since it’s a gas planet
Pressure is millions times more than on Earth
Life on Neptune wouldn't last long, there is no oxygen in it’s atmosphere so you would survive for a very short amount of time
To go to Neptune would take a very long period of time, a long amount of time such as 12 long years
If you were to actually get to Neptune and go on its surface you would instantly freeze because of its -200+ temperatures