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Neptune

Eric Otto

Neptune’s Symbol

Roman god of seas Poseidon Color Not used god

Neptune’s Name

Johann Gottfried Galle Urbain Le Verrier Heinrich Lois d’ Arrest John Couch Adams Uranus’s orbit Telescope Triton

The Discovery of Neptune

Order: 8th D. from Sun: approx. 4,460,000,000-

4,540,000,000 D. from Earth: approx. 430,000,000,000

Relative Location

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

Measurements/data

Orbit: 165 Earth years Rotation: about 19.1 Earth hours

Orbit/Rotation

1% Methane other 80% hydrogen, 19% helium Thick

Atmosphere

Average 73 K (-328) Tilted more than Earth (30) Over 390 degrees colder than Florida Extreme seasons

Temperature

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 appearance

Similar to most gas giants Dark spots can form (storms) Similar to Jupiter’s red spots Scooter Goes around the planet

Neptune’s Weather

Four rings Inferred that rings are young and short lived Disappearing rapidly Dark Found in 1989

Neptune’s Rings

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

The moons of Neptune

All water present is ice Mostly in gas and rings

Water

Freeze instantly Too much pressure Winds would smash you against objects Gas giant- no true ground except core/ fall to

death

A visit to Neptune

Winds can reach 2,000 km, making it fastest winds in solar system

Causes storms (dark spots) Dissipates in a few years

Special facts

"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-blue-planet-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?object=Neptune>.

Works Cited Page

"Neptune - EnchantedLearning.com." Neptune - EnchantedLearning.com. N.p., n.d. Web. 19 Dec. 2013. <http://www.enchantedlearning.com/subjects/astronomy/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/>.

Works Cited Page

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-in-berlin/ http://www.lcsd.gov.hk/CE/Museum/Space/EducationResource/Universe/framed_e/lecture/ch09/ch09.html

Pg. 5 http://en.wikipedia.org/wiki/Solar_System Pg. 6 http://

www.windows2universe.org/neptune/neptune.html Pg. 7 https://

www.windows2universe.org/comets/Kuiper_belt.html&edu=high

Pg. 8 http://www.physics.upenn.edu/nineplanets/neptune.html

Pictures cited

Pg. 9 http://factspage.blogspot.com/2011/09/how-does-thermometer-work.html

Pg. 10 http://news.nationalgeographic.com/news/2010/08/100812-neptune-asteroid-trojan-dead-zone-space-science/

Pg. 11 http://www.mahjoob.com/en/forums/94123-3-saturn-ready-its-close-up/ http://www.jpl.nasa.gov/spaceimages/wallpaper.php?id=PIA00049

Pg. 12 http://www.arcadiastreet.com/cgvistas/neptune_0000b.htm

Pg. 13 http://www.brown.edu/Departments/Italian_Studies/n2k/visibility/Alison_Errico/Soft%20Moon/softmoon.html http://apod.nasa.gov/apod/ap951104.html

Pictures cited

Pg. 14 http://www.wallpapers-room.com/749/Blue/Space/by_Sami_Mattila/Ice/Planets/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

Pictures cited