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  • 1. Alyssa MaierNicole Kreuz
  • 2.  The circumference at the equator is 154704.6 km Neptune is the 8th and furthest planet (not including Pluto) outward in the solar system The gravitational factor is 11.172 m/s2 ~ If you weigh 100 lbs on Earth, you would weigh about 113 lbs on Neptune w=m x g 100/9.8= 10.2 w=10.2 x 11.172 w= 113.95
  • 3. Revolution and Rotation Period The revolution period on Neptune is 165 Earth years! The rotation period is 17.24 hours
  • 4. Distance The average distance to Earth is 4.3 billion km (2.68 billion miles) Average distance to the sun is 4.51 billion km Neptune is about four light hours from Earth – about .00046 light years http://www.google.com/imgres? q=neptune&hl=en&sa=X&biw=1360&bih=587&tbm=isch&prmd=imvns &tbnid=HutQKJddICn4tM:&imgrefurl=http://www.universetoday.com/2
  • 5. What is Neptune made of? Neptune mostly consists of ammonia, water, and methane The core is iron and nickel The atmosphere consists of methane gas, ethane gas, and acetylene 80% hydrogen and 19% helium Has 5 rings Has 8 moons It is believed that the rings are young and they formed when one of Neptunes moons was destroyed http://www.google.com/imgres? q=neptunes+rings&hl=en&biw=1360&bih=587&tbm=isch&tbnid=Eh_V
  • 6. Neptune’s Climate Average -200 degrees Celsius Windiest Planet Ice Giant Neptune is the coldest planet in the solar system http:/ /w info/s ww.medi trong a -wind citygroove s-whi pping .com/awri -throu te gh-bu rsgroove/ rbank news -gene ral-
  • 7. Neptune’s Moons Neptune has 13 moons Major Moons- Nereid, Triton, Proteus  Triton- Neptune’s largest moon, orbits opposite of the planet.  Nereid- Outermost Moon of Neptune, Has an elliptical orbit to Neptune.  Proteus-second largest moon, It is irregularly shaped, many craters. nssdc.gsfc.nasa.gov
  • 8. Exploration of Neptune The Voyager 2 spacecraft, is the only to visit Neptune. Traveling at 19km per second It took 12 years to get there. sci ent ific ame rica n.c om
  • 9. Facts about Neptune Triton (Neptune’s largest moon) is older than itself Neptune hasn’t completed an orbit around the sun since it was discovered in 1846 Neptune’s day is 16 hours Neptune’s seasons last 40 Earth years Neptune has a dark spot like Jupiter, causing a storm larger than earth. wingmakers.co.nz
  • 10. Andrea, A. (2010, October 18). Neptune. Retrieved fromhttp://voyager.jpl.nasa.gov/science/neptune.htmlDelehanty, M. (2003, december 14). Neptune, gas giant with great dark spot. Retrieved from http://www.astronomytoday.com/astronomy/neptune.htmlErickson, K. (2012, april 18). Our solar system. Retrieved fromhttp://solarsystem.nasa.gov/planets/profile.cfm?Display- Factsandobjects=neptuneFraser, C. (2008, november 28). Temperature of neptune. Retrieved fromhttp://www.universetoday.com/21669/temperature-of-neptune/Minor, E. (2009, May 15). Britannica. Retrieved from http://www.britannica.com/EBchecked/topic/409330/Neptune/251785/Later-Observations From-EarthRussell, R. (2003, october 31). Neptune statistics. Retrieved fromhttp://www.windows2universe.org/neptune/statistics.htmlSmith, G. (1999, may 3). A trip through the universe . Retrieved fromhttp://casswww.ucsd.edu/archive/public/tutorial/Intro.htmlunknown. (1998, june 23). Planet facts. Retrieved from http://kidzone.ws/planets/unknown. (2011, march 16). What is neptune made of. Retrievedfrom http://planetfacts.org/what-is-neptune-made-of/