Which new idea has been added into our theory of solar system formation as a result of the discoveries of extrasolar planets?
a) In some star systems, it is possible for jovian planets to form in the inner solar system and terrestrial planets to form in the outer solar system.
b) Some of the "exceptions to the rules" in our own solar system are likely to have been the result of giant impacts.
c)In addition to the categories of terrestrial and jovian, there must be an "in-between" category of planet that has the mass of a jovian planet but the composition of a terrestrial planet.
d)Jovian planets can migrate from the orbits in which they are born.
You observe a star very similar to our own Sun in size and mass. This star moves very slightly back and forth in the sky once every 4 months, and you attribute this motion to the effect of an orbiting planet. What can you conclude about the orbiting planet?
a)You do not have enough information to say anything at all about the planet.
b)The planet must be farther from the star than Neptune is from the Sun.
c) The planet must have a mass about the same as the mass of Jupiter.
d)The planet must be closer to the star than Earth is to the Sun.
The region of our solar system between Mercury and Mars has very few asteroids, while the region between Mars and Jupiter has many asteroids. Based on what you have learned, what is the most likely explanation for the lack of asteroids between Mercury and Mars?
a) There were very few planetary leftovers in this region, because most of the solid material was accreted by the terrestrial planets as the planets formed.
b)Gravity was too weak to allow asteroids to form in this part of the solar system.
c)It was too hot for asteroids to form in this part of the solar system.
d)All the asteroids that formed between Mercury and Mars later migrated to the asteroid belt between Mars and Jupiter.
Based on everything you have learned about the formation of our solar system, which of the following statements is probably not true?
a) Other planetary systems will have far more numerous asteroids and comets than actual planets.
b)Other solar systems will also have planets in the two basic categories of terrestrial and jovian.
c)Only a tiny percentage of stars are surrounded by spinning disks of gas during their formation.
d)Planets always tend to orbit their star in the same direction and approximately the same plane.
a) In some star systems, it is possible for jovian planets to form in the inner solar system and terrestrial planets to form in the outer solar system.
b) Some of the "exceptions to the rules" in our own solar system are likely to have been the result of giant impacts.
c)In addition to the categories of terrestrial and jovian, there must be an "in-between" category of planet that has the mass of a jovian planet but the composition of a terrestrial planet.
d)Jovian planets can migrate from the orbits in which they are born.
You observe a star very similar to our own Sun in size and mass. This star moves very slightly back and forth in the sky once every 4 months, and you attribute this motion to the effect of an orbiting planet. What can you conclude about the orbiting planet?
a)You do not have enough information to say anything at all about the planet.
b)The planet must be farther from the star than Neptune is from the Sun.
c) The planet must have a mass about the same as the mass of Jupiter.
d)The planet must be closer to the star than Earth is to the Sun.
The region of our solar system between Mercury and Mars has very few asteroids, while the region between Mars and Jupiter has many asteroids. Based on what you have learned, what is the most likely explanation for the lack of asteroids between Mercury and Mars?
a) There were very few planetary leftovers in this region, because most of the solid material was accreted by the terrestrial planets as the planets formed.
b)Gravity was too weak to allow asteroids to form in this part of the solar system.
c)It was too hot for asteroids to form in this part of the solar system.
d)All the asteroids that formed between Mercury and Mars later migrated to the asteroid belt between Mars and Jupiter.
Based on everything you have learned about the formation of our solar system, which of the following statements is probably not true?
a) Other planetary systems will have far more numerous asteroids and comets than actual planets.
b)Other solar systems will also have planets in the two basic categories of terrestrial and jovian.
c)Only a tiny percentage of stars are surrounded by spinning disks of gas during their formation.
d)Planets always tend to orbit their star in the same direction and approximately the same plane.