Neptune
Eric Otto
{
Neptune’s Symbol
Neptune’s Name
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Roman god of seas
Poseidon
Color
Not used god
The Discovery of Neptune
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Johann Gottfried Galle
Urbain Le Verrier
Heinrich Lois d’ Arrest
John Couch Adams
Uranus’s orbit
Telescope
Triton
Relative Location
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Order: 8th
D. from Sun: approx. 4,460,000,000-4,540,000,000
D. from Earth: approx. 430,000,000,000
Measurements/data
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Mass: about 17.2 times Earth’s size (102.4E24 kg)
Volume: approx. 62,525,703,987,421 km³
Density: 1,638 kg
Sink: no, composition too heavy
Gravity: about 1.12 times Earth’s
Orbit/Rotation
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Orbit: 165 Earth years
Rotation: about 19.1 Earth hours
Atmosphere
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1% Methane other
80% hydrogen, 19% helium
Thick
Temperature
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Average 73 K (-328)
Tilted more than Earth (30)
Over 390 degrees colder than Florida
Extreme seasons
Neptune’s appearance
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Gas giant
Windy and cold
Mantle of ammonia and methane ices
Core iron and magnesium
Size of Uranus
Dark blue
Dark storms can appear
Neptune’s Weather
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Similar to most gas giants
Dark spots can form (storms)
Similar to Jupiter’s red spots
Scooter
Goes around the planet
Neptune’s Rings
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Four rings
Inferred that rings are young and short lived
Disappearing rapidly
Dark
Found in 1989
The moons of Neptune
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14 moons
Triton- largest and has ice on it, with a thick atmosphere, in retrograde:
1846
Nereid- third largest, distance from Neptune varies from 1,353,600 to
9,623,700 km: 1949
Naiad- smallest named moon, closest to Neptune: 1989
Thalassa- second closest to Neptune irregularly shaped: 1989
Despina- small moon near Neptune: 1989
Galatea- small moon that is close to Neptune: 1989
Larissa- non-spherical moon that is heavily cratered: 1989
Proteus- second largest moon that is dark and close to Neptune
(irregular): 1989
Halimede- retrograde: rumored to be part of Nereid: 2002
Psamathe- takes 25 years to orbit, retrograde: 2003
Sao-Kozai resonance, inclination of orbit decreases, eccentricity
increases, vice versa: 2002
Laoredeia- one of the small moons of Neptune: 2002
Neso- 48,000,000 km away, farthest moon in SS, 26.67 revolution: 2002
S/2004 N1 (unnamed) unnamed, smallest satellite: 2004
Water
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All water present is ice
Mostly in gas and rings
A visit to Neptune
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Freeze instantly
Too much pressure
Winds would smash you against objects
Gas giant- no true ground except core/ fall to death
Special facts
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Winds can reach 2,000 km, making it fastest winds in
solar system
Causes storms (dark spots)
Dissipates in a few years
Works Cited Page
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"Neptune." L Facts, Pictures and Information. N.p., n.d.
Web. 17 Dec. 2013.
<http://nineplanets.org/neptune.html>.
"Welcome to the Planets: Neptune." Welcome to the
Planets: Neptune. N.p., n.d. Web. 19 Dec. 2013.
<http://pds.jpl.nasa.gov/planets/choices/neptune1.htm
>.
"Neptune: The Other Blue Planet in Our Solar
System." Space.com. N.p., n.d. Web. 18 Dec. 2013.
<http://www.space.com/41-neptune-the-other-blueplanet-in-our-solar-system.html>.
"Solar System Exploration: Planets: Neptune:
Overview." Solar System Exploration: Planets: Neptune:
Overview. N.p., n.d. Web. 19 Dec. 2013.
<http://solarsystem.nasa.gov/planets/profile.cfm?objec
t=Neptune>.
Works Cited Page
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"Neptune - EnchantedLearning.com." Neptune EnchantedLearning.com. N.p., n.d. Web. 19 Dec. 2013.
<http://www.enchantedlearning.com/subjects/astrono
my/planets/neptune/>.
"Neptune." - Windows to the Universe. N.p., n.d. Web.
19 Dec. 2013.
<http://www.windows2universe.org/neptune/neptune
.html>.
"Compare Planets." Planet Database. N.p., n.d. Web. 18
Dec. 2013. <http://planets.findthedata.org/>.
"Universe Today." Universe Today RSS. N.p., n.d. Web.
17 Dec. 2013. <http://www.universetoday.com/>.
Pictures cited
Pg. 1
http://solarsystem.nasa.gov/planets/profile.cfm?Object=Neptune
 Pg. 2
http://www.clker.com/clipart-28063.html
 Pg. 3 http://imythology.wikispaces.com/Neptune
 Pg. 4 http://www.berlin-sciences.com/en/facts/history-of-science-inberlin/
http://www.lcsd.gov.hk/CE/Museum/Space/EducationResource/Un
iverse/framed_e/lecture/ch09/ch09.html
 Pg. 5 http://en.wikipedia.org/wiki/Solar_System
 Pg. 6 http://www.windows2universe.org/neptune/neptune.html
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Pg. 7
https://www.windows2universe.org/comets/Kuiper_belt.ht
ml&edu=high
Pg. 8
http://www.physics.upenn.edu/nineplanets/neptune.html
Pictures cited
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Pg. 9 http://factspage.blogspot.com/2011/09/how-doesthermometer-work.html
Pg. 10
http://news.nationalgeographic.com/news/2010/08/100812neptune-asteroid-trojan-dead-zone-space-science/
Pg. 11 http://www.mahjoob.com/en/forums/94123-3-saturnready-its-close-up/
http://www.jpl.nasa.gov/spaceimages/wallpaper.php?id=PI
A00049
Pg. 12
http://www.arcadiastreet.com/cgvistas/neptune_0000b.htm
Pg. 13
http://www.brown.edu/Departments/Italian_Studies/n2k/vi
sibility/Alison_Errico/Soft%20Moon/softmoon.html
http://apod.nasa.gov/apod/ap951104.html
Pictures cited
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Pg. 14 http://www.wallpapersroom.com/749/Blue/Space/by_Sami_Mattila/Ice/Planet
s/Landscapes/Full/HD/Wallpaper/
Pg. 15
http://library.thinkquest.org/28327/html/universe/solar
_system/planets/neptune/surface/surface_winds.html
Pg. 16
http://www.arcadiastreet.com/cgvistas/neptune_0060.
htm