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Exo -planets

Exo -planets. Size. Most Exo -planets are smaller than earth A common E xo -planet is around one-twelfth the size of earth (1,250-1,800 km in diameter) This is also about half the size of Pluto. Sedna 1,300-1,600 km in diameter. Quaoar 1,250 km. Pluto 2,302 km. Moon

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Exo -planets

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  1. Exo-planets

  2. Size • Most Exo-planets are smaller than earth • A common Exo-planet is around one-twelfth the size of earth (1,250-1,800 km in diameter) • This is also about half the size of Pluto Sedna 1,300-1,600 km in diameter Quaoar 1,250 km Pluto 2,302 km Moon 3,476 km Earth 12,756 km

  3. Colors and Surface Features • Exo-planets all have wide ranges of colors and surface features • Sedna, a well known planet, is trans-Neptune and composed of many different elements • It is one of the reddest planets • Quaoar, another planet is a rocky trans-Neptune planet that is moderately red

  4. Rotation and Revolution • Again, Exo-planet revolutions and rotations vary • Sedna a common exo-planet rotation is 10 hours, and its revolution is around 11,400 years The orbit of Sedna (red) set against the orbits of Jupiter (orange), Saturn (yellow), Uranus (green), Neptune (blue), and Pluto (purple)

  5. Density • Exo-planets vary in density • Two common Planets, Sedna and Quaoar have densities that are very similar • Sedna has a density of about 2.0 g/cm3 Quaoar has a density of 2.2 g/cm3 • This is about ½ the density of Earth

  6. Gravity • Exo- Planets have ranges of gravity • Sedna’s gravitational pull is about 0.27 m/s2 • Quaoar’s gravitational pull is around 0.376m/s2 • Earth’s gravity is 9.78 m/s² • In relation, you would practically fly on Sedna and Quaoar, since there pull is 1/10 that of Earth’s

  7. Atmospheric Composition • Atmospheres on exo-planets can vary often • Sedna, a common exo-planet does not have an atmosphere, but might contain one someday • Quaoar, another example, also does not contain a known atmosphere • Both may one day posses an atmosphere due to elements present Interpretation of the view of the sun form Sedna

  8. Surface Composition • Most exo-planets surfaces are rocky and terrestrial • Due to limits on space technology there are limits on what we know about the surface composition of exo-planets Interpretation of Quaoar’s surface

  9. Interior Composition • A majority of exo-planet interior’s are composed of ice-like materials, and a solid, rocky core Quaoar’s Interior

  10. Magnetic Field • Again, detecting the magnetic fields of exo-planets around us is highly complicated • So far no magnetic fields have successfully been proven as detecting them is very complex • All exo-planets are thought to have a magnetic field

  11. Moons • Variation in the amounts of moons is common in exo-planets • Sedna, for example, has no known moons • Quaoar, has one moon, called Weywot, its revolution is around 12.9 days and has an equatorial diameter of about 85 km Weywot, Quaror’s moon, is theorized to appear like so

  12. Unique Features of Exo-planets • Exo- means outside • There are over 200 known exo-planets • Exoplanet: a planet that orbits the sun outside Pluto or another star Exo-planet 51 Pegasi B, one of the first discovered exo-planets

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