Download NEPTUNE*!

NAME*!
NEPTUNE
The name Neptune come from a
mythological god like many other
planets. It’s named for the roman
god of the sea. And it was
discovered by Johann Gotfried Galle
on September 23, 1846
POSITION IN THE solar
system*!
Neptune is the earth’s
eighth planet from the
sun in our solar system
Rotation on it’s axis*!
it takes neptune16.11hours to
rotate on it’s own axis which is
one day on Neptune
Size*!
th
4
Neptune is the
largest
planet by diameter and the 3rd
largest planet by mass….
mass- 1.024e+26 (kg)
Gravity*!
The gravity on Neptune is
1.19km times the gravity on
earth and a person that weighs
100 pounds would weigh
119…. WOAHHHH! :]
ORBIT
It takes Neptune 60,190 to orbit
which is 165 earth days. It
completes an orbit every
164.79 years
Atmosphere*!
Neptune's atmosphere mainly consists of
molecular hydrogen, it has a very thick
atmosphere
Atmospheric composition
Hydrogen
85%
Helium
13%
Methane
2%
TEMPERATURE*!
The temperature on Neptune is - 220 C Scientists believe that
Neptune must have some internal
source of heat and its atmosphere
consists mostly of hydrogen and
helium
Rings
The rings of Neptune were
discovered in 1989. Neptune has 5
known rings that are each named
after astronomer who did important
work on the planet. Galle, Le Verrier,
Lassell, Arago and Adams are the
names of them
Composition of Neptune
Neptune is a gas giant and the
internal composition of
Neptune is made up of Helium
and Methane
Moons
Neptune has 13 known moons.
They are composed of rock and
ice. The first four moons of
Neptune, Naiad, Thalassa,
Despina, and Galatea, are so
close to Neptune that they orbit
within its ring system
How would a human being fare on
Neptune??
The gravity of Neptune is alright compared
to earth,
The atmosphere is mainly hydrogen and
helium meaning that there is no chance of
living there and breathing normally
The temperature is 55K, which is in and
around -220 *C
Neptune is the smallest of the gas giants
With an equatorial radius of only 24,764
km, Neptune is smaller than the other gas
giants in the solar system Jupiter, Saturn
and Uranus. But here's the funny thing,
Neptune is actually more massive than
Uranus by about 18%. Since it's smaller
but more massive, Neptune is much more
dense than Uranus.