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Cole Nachman
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Why the name Neptune?
❏ Urbain Le Verrier discovered planet.
❏ Claimed right to name discovery
Who? When? How?
❏ Urbain Le Verrier
❏ September 23, 1846
❏ Using Mathematics
-1846, John G. Galle and Heinrich d’Arrest
looked for predicted planet and saw it
Planet Measurements
❏ Mass: 1.0243x10^26 kg
❏ Volume: 6.254x10^13 kg
❏ Density: 1.64 g/cm3
Neptune would not float in
water because of its
denseness.
Gravity: 11.15 m/s2
Atmosphere
❏ Thick
-74% hydrogen
-25% helium
-1% methane
Distances
❏ Eighth from the sun
(farthest)
❏ 4,503,000,000 km from
sun
❏ 4,301,000,000 km from
earth
Orbit and Rotation
❏ 164.79 years to orbit the
sun
-165 times longer than
Earth
❏ 19.1 hours to rotate on
its on axis
Temperature
❏ Temp. range of -151.1 through -201.1 degrees celsius
on Neptune
❏ Temp. range of 10 through 20 degrees celsius on Earth
❏ Temp. range of 18.3 through 21.1 degrees celsius in
Florida
Neptune’s Composition
❏ Gas Giant
Surface is not solid
❏ Internal composition consist of:
Mantle: A water, ice and rock
mixture (May contain Methane).
Core: 45% of mass is silicate rock
Appearance
Neptune is a cold, blue-colored planet. Neptune has
many gas clouds, some of which are visible from
outside the planet. Neptune also has many storms and
powerful wind speeds (most powerful winds of all
planets in solar system). A cool feature about Neptune
is it’s “Great Dark Spot”. The “Great Dark Spot” is a
depression in it’s atmosphere. There are also 3 faint
rings.
Rings
❏ 3 main rings
-Adam (outermost)
-Unnamed ring (middle)
-Galle(inner)
❏ Reddish in color
❏ 20% dust and small rocks
❏ Discovered by “Voyager 2 Probe.”
Water
❏ Steam
❏ Liquid water
❏ Ice
Weather
❏ Large storms, High Winds
❏ Rapidly Changing clouds
No one knows how it gets its strong weather,
being its so far away from the sun.
Moons
❏ 14 moons in total (so far)
❏ Discovered from 1846-2013 (July
15, 2013 was the latest
discovery)
❏ Moons are extremely icy and
cold!
What would happen if a human
visited Neptune?
❏ Humans would freeze, because of the fact
that Neptune has freezing temperatures.
❏ Humans would choke because of the lack of
oxygen on Neptune.
What makes Neptune so special?
★ Farthest planet from sun
★ Smallest of Gas giants
★ Gravity is Earth-like
★ Coldest planet
★ No definite plans to revisit Neptune again
★ Windiest planet
Bibliography
http://www.universetoday.com/75693/how-did-neptune-get-its-name/
http://start.csail.mit.edu/startfarm.cgi?query=How+was+Neptune+discovered%3F
http://en.wikipedia.org/wiki/Neptune
http://www.universetoday.com/44187/how-long-does-it-take-neptune-to-orbit-the-sun/
http://www.planetsforkids.org/planet-neptune.html
http://www.enchantedlearning.com/subjects/astronomy/planets/neptune/atmosphere.shtml
www.crh.noaa.gov/fsd/?n=neptune
http://nineplanets.org/neptune.html
http://planetfacts.org/what-does-neptune-look-like/
http://www.universetoday.com/21635/rings-of-neptune/
Bibliography
http://www.space.com/22222-neptunes-moons.html
http://www.sciencekids.co.nz/sciencefacts/planets/neptune.html
http://www.universetoday.com/21999/10-interesting-facts-about-neptune/
http://www.gulfcoastacademy.org/tech/projects/08-09_student_web/SarinaS/rings.html
http://www.currentresults.com/Weather/Florida/average-florida-temperatures-by-month.php
http://nineplanets.org
http://solarsystem.nasa.gov/index.cfm
http://solarsystem.nasa.gov/multimedia/display.cfm?IM_ID=167
http://www.kidsastronomy.com/solar_system.htm