Question 411 pts Which technique of finding exoplanets uses the Doppler shift of

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Question 411 pts

Which technique of finding exoplanets uses the Doppler shift of the star’s wobble?  

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Question 421 pts

The 1st discovered multi-planet system outside of our own solar system is called what?

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Question 431 pts

How many planets does the 1st discovered multi-planet system have?

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Question 441 pts

The clouds of Uranus lack the bands that are characteristic of the other jovian planets.   What is the most probable cause for Uranus' featureless appearance?

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Question 451 pts

Which of the following statements about Jupiter is FALSE?

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Question 461 pts

Which of the following missions have been to Jupiter, Saturn and Mars in that order?

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Question 471 pts

Why do you expect to find only large impact craters on the surface of Venus?  

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Question 481 pts

If a ________ hits Earth's atmosphere and does not burn up as a ________, it can fall to Earth's surface and be found as a ________.  

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Question 491 pts

Who discovered the planet Pluto?

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Question 501 pts

Which of the following statements is TRUE about the rings of the planets?

Explanation / Answer

411)A star with a planet moves in its own small orbit with planet's gravity. The variations are in the radial velocity leads to variations in the speed with which the star moves toward or away from Earth. The radial velocity can be deduced with the Doppler effect. The radial-velocity method measures variations to confirm the presence of the planet.

421)51 Pegasi has indicated which is generating energy through the thermonuclear fusion of hydrogen at its core

431)NASA's Kepler Mission discovered the first planetary system with two planets, Kepler 9b and 9c.

441)The clouds of Uranus lacks the characteristic of the other jovian planets and the most probable cause for Uranus' featureless appearance Uranus is colder than the other planets because It is believed that the stirred atmosphere could be oozing heat.

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