In the distant future, a new planet has been discovered around a nearby Sun-like star. The following information is known about this planet: i) It has a density of 4.1 compared to water; ii) its orbital semi-major axis is 1.7 AU; ii) it has a very thin CO2 atmosphere; iv) imaging of the surface shows an extensive amount of cratering as well as no liquid water on the surface. There is evidence of volcanic activity in the distant past. Determine the following based on the above information:

Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
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In the distant future, a new planet has been discovered
around a nearby Sun-like star. The following information
is known about this planet: i) It has a density of 4.1
compared to water; ii) its orbital semi-major axis is 1.7
AU; ii) it has a very thin CO2 atmosphere; iv) imaging of
the surface shows an extensive amount of cratering as
well as no liquid water on the surface. There is evidence
of volcanic activity in the distant past. Determine the
following based on the above information:
a) What type of planet is this? (Terrestrial or Jovian)
b) Briefly explain its likely evolutionary history until this
point.
Transcribed Image Text:In the distant future, a new planet has been discovered around a nearby Sun-like star. The following information is known about this planet: i) It has a density of 4.1 compared to water; ii) its orbital semi-major axis is 1.7 AU; ii) it has a very thin CO2 atmosphere; iv) imaging of the surface shows an extensive amount of cratering as well as no liquid water on the surface. There is evidence of volcanic activity in the distant past. Determine the following based on the above information: a) What type of planet is this? (Terrestrial or Jovian) b) Briefly explain its likely evolutionary history until this point.
Expert Solution
Step 1

(a)

From the details given in the question, it is clear that the planet is orbiting at distance (1.7 AU from its star) equal to distance of a point falling between somewhere Mars and Jupiter from the sun. Its density also much higher, suggesting that it is a terrestrial (rocky) planet.

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