1. Neptune By : Jack, Charlie, and Brody

2. Discovery and Name Le Verrier was ignored by French astronomers then sent his discovery to Johann Gottfried Galle. 17 days later Neptune was discovered. Neptune was named after Poseidon the Greek sea god. Also know in Roman myths as Neptune.

3. Measurements Number from the Sun 8th Distance from the Sun 2.795 billion miles Diameter 30,599 miles Mass 1.024 x 10^26 Temperature -218 degrees C Day Length 16 hours 6 minutes Year Length 165 years

4. Composition and Appearance Insert Surface Composition Here Neptune’s surface composition is almost Earthlike. Insert Interior Composition Here internal composition is methane. Insert Appearance Here Neptune’s atmosephere is 80% hydrogen and 19% percent helium. The rings are made of asteroids and rocks.

5. Moons Triton, Nereid, Proteus, Thalassa, Psamathe, Larissa, Despina, Galatea, Halimede, Naiad, Laomedeia,, Sao.The major moons are, Nereid, Naiad, Proteus, Galatea.

6. Exploration The Voyager 2 took pictures Neptune on September 2007.

7. Unique Facts N e p t u n e i s t h e c o l d e s t p l a n e t i n o u r S o l a r S y s t e m, N e p t u n e c a n g e t a s c o l d a s - 2 2 1. 4 d e g r e e s C e l s i u s ! A n o t h e r u n i q u e f a c t i s t h a t N e p t u n e a l s o h a s t h e s t r o n g e s t w i n d s, t h e y c a n r e a c h u p t o 2 1 0 0 k i l o m e t e r s p e r h o u r. N e p t u n e g e t s i t s b l u e c o l o r b y m e t h a n e. N e p t u n e h a s s i x b r i g h t r i n g s t h a t a r e m a d e o f r o c k s a n d a s t e r o i d s. N e p t u n e i s a g a s g i a n t w h i c h m e a n s i t i s m o s t l y g a s a n d t h e c o r e i s i r o n.

8. Photo Credits Slide 3: NASA / Photo Researchers / Universal Images Group Slide 1:: DETLEV VAN RAVENSWAAY / SCIENCE PHOTO LIBRARY / Universal Images Group Slide 5 NASA / SCIENCE PHOTO LIBRARY / Universal Images Group