NeptuneBy Cole

Facts Pictures Moons

Planet Facts 1

• Neptune is the eighth and sometimes last planet from the sun.

• It is last sometimes because its orbit crosses with Pluto’s.

• Neptune’s gravitational pull is 1.2 times stronger than Earth’s.

• It is 2,794,000,000 miles from the sun.• Neptune has 8 moons: Naiad, Thalassa, Despina,

Galatea, Larissa, Proteus, Triton, and Nereid.

Planet Facts 2

• The diameter of Neptune is 49,532 kilometers across.

• Neptune, unlike Earth is gas planet. That means it is has more gas than rocky area.

• The temperature on Neptune can get as low as -360°f (-218°c).

• Neptune has hydrogen, methane, helium, and ammonia. The methane and ammonia are in the “ices” on Neptune.

Planet Facts 3

• Neptune’s rotation period (day) is 17 hours 50 minutes long.

• There are four rings that go around Neptune.• The Great Dark Spot like Jupiter’s Red is on

Neptune. • Neptune’s revolution period (year) is 165 of

our years.

Planet Facts 4

• Neptune was named after the Roman god of the sea.

• Neptune is the fourth largest planet in the solar system.

• Voyager 2 was the first space probe to visit Neptune.

Planet Facts 5

• John Adams and Urbain Leverrier first located Neptune.

• Johann Galle first sighted Neptune.

• He first saw Neptune on September 23, 1846.

Neptune Snapshot

This picture was taken by Voyager 2 on its first mission to Neptune.

MoonsThalassa

Despina

Galatea Triton

Nereid

Larissa

Proteus

Naiad

Bibliography

• Neptune by Franklyn M. Branley ©1992• Our Solar System by Brian Jones and Andrew Gutelle ©1992• http://starchild.gsfc.nasa.gov

author: Starchild Team• http://seds.lpl.arizona.edu

author: Bill Arnett ©April 13, 2003• http://www.windows.ucar.edu

author: Windows Team © March 12, 2003• http://pds.ipl.nasa.gov author: Jet Propulsion Lab of the California

Institute of Technology © 1995-2001• http://www.solarviews.com author: Calvin J. Hamilton © 1997-2001