Neptune is the eighth planet from the sun, named after the Roman god of the sea. It is the fourth largest planet by diameter and third largest by mass, about 17 times the size of Earth. Neptune is composed primarily of water, methane and ammonia and has a distinctive blue color. It has 13 known moons, the largest being Triton. Neptune was discovered in 1846 and is located an average distance of about 2.8 billion miles from the sun.

2. Characteristics of Neptune
Neptune is the eighth planet about the sun and the
longer one of the solar sistem.
Named in honor of the Roman god.
Is the fourth planet in diameter and the
third largest mass.
Is seventeen times the Earth.
The tempereture is -260.
The diameter is aprox.24 746 m
The distance of Neptune to the Earth is 149.600.000.

3. When was it discovered ?
It was discovered on the 23th September of
1846.

4. Is made of...
Inside:
Water
Methane
Ammonia liquid
Outside:
Hydrogen
Helium
Water vapour
Methane
That gives the blue colour.

5. The satellites
• Neptune has 13 satellites:
• Naïade,Talasso,Despina,Galatea,Larissa,Proteus,
Triton,Nereida,Halimedes,Sao,Laomedeia,Psamate,
Nessus

6. Finish