1. Neptune
By: Gigi Hartzell

2. Neptune's Symbol

3. How Neptune got its name
Neptune was named after the roman god of the sea
It first got called “the planet exterior to Uranus” and Johann Galle wanted to name it Janus. Another suggestion was Oceanus. Urbain Le Verrier, who discovered Neptune claimed the right to name his discovery and he names it Neptune.

4. Discovery
Johann Galle and D’Arrest discovered it in September 23, 1846
Johann Galle
Heinrich D’Arrest

5. Planet Measurements Masss: 102.4E24 Volume: 62,525,703,987,421 Km3
Density: 1,640
Neptune would float because it is so light
Gravity: 11.15ft/s2

6. Composition of the atmosphere
Mostly made up of hydrogen, helium, and some methane
Methane is what makes Neptune blue

7. Distances 8th planet from the sun 4,496.6km from the sun
2,680,000,000 from earth

8. Orbit and rotatin It takes 60,190 days to orbit the sun
That is earth years
It takes .67 to rotate on its own axis
Thats 19.1 hours

9. Temperature Average temp is -353 degres F
It is much colder on Neptune then it is on earth and in florida

10. Composition and Appearance
Its is known as a Gas Giant
The internal composition is a rocky core made up of iron and other metal
The out side has a blue tint. It has a slushy ice and water layer. It is air and gassy and you cold not step foot on it with out starting to sink down.

11. Rings There are 4 rings on Neptune
What they are made out of is unknown
The rings are very dark

12. Water
Water freezes and goes into a slushy watery mixture on the surface.

13. Weather There are lots of clouds There are storms
Neptune has the worst weather
They have Cold icy brutal storms alot

14. Moons 13 known moons They all have names
They were all discovered between

15. What would happen if a human traveled to neptune
You would be crushed by the atmosphere
You would slowly sink to the center
And when you got to the core what ever was left of you would burn up because the center is so hot

16. Neptune May Be a Giant Diamond
With Neptune's Gravity that squeezes on the planet, scientists found that Neptune's methane would decompose, with some of the hydrogen atoms breaking away and leaving the carbon to be compressed into pure, tiny diamonds.

17. citations
Coffey, Jerry. "How Did Neptune Get Its Name." Universe Today RSS. N.p., 12 Mar Web. 19 Dec
"Aliens & Space." Science Channel. N.p., Web. 19 Dec
"Neptune."   L  Facts, Pictures and Information. N.p., Web. 31 Dec <
Sword, Betty. "Welcome to the Planets: Neptune." Welcome to the Planets: Neptune. N.p., n.d. Web. 01 Jan <
Davis, Phil. "Solar System Exploration: Planets: Neptune: Overview." Solar System Exploration: Planets: Neptune: Overview. Greg Baerg, 25 Oct Web. 31 Dec <