NeptuneNeptune

ByBy Bridget Becica &Bridget Becica & Chris BadroosChris Badroos

Where it is found in the Solar Where it is found in the Solar SystemSystem

In Roman mythology In Roman mythology NeptuneNeptune (Greek: (Greek: PoseidonPoseidon) was the god of the Sea. ) was the god of the Sea.

Neptune is the 8Neptune is the 8thth planet from the sun. planet from the sun. Neptune is 4,504,300,000 km from the Neptune is 4,504,300,000 km from the

sun. sun.

DescriptionDescription Size-1.02Size-1.02

Shape-Neptune's shape is circler shapeShape-Neptune's shape is circler shape

Color- The color of Neptune is dark blueColor- The color of Neptune is dark blue

Neptune takes 16 hours, 6 minutes and 36 seconds to Neptune takes 16 hours, 6 minutes and 36 seconds to rotate once on its axis. That's about 2/3rds of an earth day.rotate once on its axis. That's about 2/3rds of an earth day.

Neptune takes 164 Years, 288 Days, 13.0 Hours to orbit the Neptune takes 164 Years, 288 Days, 13.0 Hours to orbit the

sun. sun.

Moons:Neptune has 13 known moons; 7 small named Moons:Neptune has 13 known moons; 7 small named

x 1026x 1026

One of Neptune’sOne of Neptune’s MoonsMoons

One of Neptune’s Moons - Triton

It’s rings It’s rings Images by Voyager 2 in 1989 discovered that the ring Images by Voyager 2 in 1989 discovered that the ring

system was found to contain several faint rings, the system was found to contain several faint rings, the outermost of which, Adams, contains three prominent arcs outermost of which, Adams, contains three prominent arcs now named Liberty, Equality and Fraternity. now named Liberty, Equality and Fraternity.

The existence of arcs is very difficult to understand because The existence of arcs is very difficult to understand because the laws of motion would predict that arcs spread out into a the laws of motion would predict that arcs spread out into a uniform ring over very short timescales.uniform ring over very short timescales.

The gravitational effects of Galatea, a moon just inward The gravitational effects of Galatea, a moon just inward from the ring, are now believed to confine the arcs. from the ring, are now believed to confine the arcs.

Several other rings were detected by the Voyager cameras. Several other rings were detected by the Voyager cameras.

Atmosphere & Special FeaturesAtmosphere & Special Features Temperature (highs/lows): Average of -373 Fahrenheit/-225 Temperature (highs/lows): Average of -373 Fahrenheit/-225

Celsius Celsius

Atmosphere: 74% hydrogen,Atmosphere: 74% hydrogen,25% helium,25% helium,1% methane (at depth)1% methane (at depth)

Special Markings- Neptune's most prominent feature is the Special Markings- Neptune's most prominent feature is the Great Great Dark SpotDark Spot (left) in the southern hemisphere. It is about half the (left) in the southern hemisphere. It is about half the size as Jupiter's Great Red Spot (about the same diameter as size as Jupiter's Great Red Spot (about the same diameter as Earth). Neptune's winds blew the Great Dark Spot westward at Earth). Neptune's winds blew the Great Dark Spot westward at 300 meters/second (700 mph). Voyager 2 also saw a smaller dark 300 meters/second (700 mph). Voyager 2 also saw a smaller dark spot in the southern hemisphere and a small irregular white cloud spot in the southern hemisphere and a small irregular white cloud that zips around Neptune every 16 hours or so now known as "The that zips around Neptune every 16 hours or so now known as "The Scooter" (right).Scooter" (right).

What we thinkWhat we think

We think that Neptune pulled the outer We think that Neptune pulled the outer planets away from the inner planets planets away from the inner planets so that’s why there is that asteroid so that’s why there is that asteroid space in the middle of the inner space in the middle of the inner planets and the outer planets. planets and the outer planets.

Neptune

RecoursesRecourses

http://www.nasa.gov/worldbook/nepthttp://www.nasa.gov/worldbook/neptune_worldbook.htmlune_worldbook.html

http://pds.jpl.nasa.gov/planets/http://pds.jpl.nasa.gov/planets/special/neptune.htmspecial/neptune.htm