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Author Question: Describe the ways in which Pluto is different from the terrestrial and jovian planets in the solar ... (Read 26 times)

frankwu

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on: Jul 27, 2018
Describe the ways in which Pluto is different from the terrestrial and jovian planets in the solar system.
 
  What will be an ideal response?

Question 2

Contrast the deaths of low- versus high-mass stars.
 
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deja

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Reply #1 on: Jul 27, 2018
Answer to Question 1

Pluto is predominantly composed of ice and rock, unlike the terrestrial planets which have little ice and the jovian planets which have (proportionally) little rock. Further, its orbit has a much higher eccentricity and inclination than the terrestrial and jovian planets which orbit close to the ecliptic plane. Finally, there are many objects known, most smaller but at least one larger, than Pluto with similar compositions and similar orbits whereas the other planets have no other comparable companions in similar orbits.

Answer to Question 2

Low-mass stars swell up as red giants, stabilize with the helium flash, then again evolve into supergiants, shedding planetary nebula and leaving the white dwarf core exposed. By contrast, massive stars may form supergiants and continue fusing heavier and heavier elements up to iron, then end in much more violent deaths as Type II supernovae.


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