NEPTUNE
The Neptune is
the eighth planet
from the Sun.
Because of his colour
he was named
Neptune, after the
Roman God of the
seas
We currently know
8 moons of
Neptune
ON SEPTEMBER 23, 1846, JOHANN GALLE
SAW IT FIRST THROUGH A TELESCOPE.
Atomsphere:
 80% for hydrogen
 19% for helium
 1% for methane
NOT VISIBLE FOR NAKED EYES
Diameter: 49.422 km
Its diameter is the 4th biggest
in the Solar system.
Neptune is a very cold planet.
temperature is -225°C

Neptune, the coldest planet