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Study Questions Part 1              Study Questions Part 2                  Study Questions Part 3  

 

STUDY QUESTIONS PART 4

 

 

Extrasolar Planets

  1. Describe the techniques used to find extrasolar planets.
  2. Know approximately how many extrasolar planets have been found so far.
  3. What are the typical masses of the stars in the known exoplanet systems? Why is this?
  4. What is the range of masses (in terms of the mass of Jupiter) for the known exoplanets? How does this compare with the planets in our solar sytem?
  5. What is the range of orbital radii (in A.U.) of the known exoplanets? How does this compare with the planets in our solar sytem?
  6. What is the range of orbital eccentricity of the known exoplanets? How does this compare with the planets in our solar sytem?
  7. What is meant by the term "hot Jupiter"?
  8. How do the characteristics of the extrasolar planets found so far compare to our solar system?
  9. What are the biases introduced into the study of exoplanets?

 

 

Study Questions Week 13

Systems of Time

  1. Know the terms: local apparent time, local mean time, equation of time, zone time, mean Sun
  2. What is the longitude correction? 
  3. Why do we need the concept of the "mean Sun"? 
  4. Is the Sun always on your meridian at noon? Explain. 
  5. Be able to do the problems similar to the "Time Homework Problems".

Earth-Sun Relations

  1. What is the "torrid zone"?
  2. What are the latitudes of the torrid zone on Earth?
  3. How does the torrid zone relate to the angle of inclination of a planet?
  4. What is the major factor that causes seasons for a planet with a nearly circular orbit?
  5. What latitudes can have the Sun directly overhead?

Study Questions Week 14

The Sun

  1. Describe the different regions of the sun. Which parts form the interior? Which parts are considered the atmosphere? What are the main characteristics of each region?
  2. What are the basic properties of the sun: composition, average density, mass and radius compared to Earth, surface temperature, and interior temperature?
  3. What are sunspots?
  4. What is the solar wind? From where does it originate? ...or...What is a "coronal hole"?
  5. Describe coronal mass ejection, flares, and prominences. Which is more energetic?
  6. What are the consequences of solar flares on Earth?
  7. What is the "solar cycle"? How long is it?
  8. What are the characteristics of sunspots?

Earth-Space

  1. How does the solar wind effect the Earth's magnetic field?
  2. What causes the aurora?
  3. Where are aurora usually seen? Why?
  4. What colors are seen in the aurora? What is the cause of the different colors?