Lunar Topography: Answer Sheet

  1. From your observations, give a brief description of a crater and a mare.




  2. Which side of the portion of the Moon that we see is lit first after a new moon?



  3. What is the purpose of the four flat panels on the sides?



  4. Do you think this image was taken from the Earth? Why or why not?




  5. Do you think the Apollo planners picked a reasonable range of sites to sample the lunar surface? Why or why not? Why are all the landing sites on the near side of the Moon?




  6. At what phase(s) could an Earth-based observer have seen the Moon when this image was taken?

  7. Record the crater's diameter and the height of its walls.



    Make a sketch of the Earth-Moon-Sun geometry when this image was taken.





    What was the phase of the moon when this image was taken?



  8. Measure the diameter of Copernicus (in pixels).



  9. The image scale is 800 meters per pixel. From this, determine Copernicus' diameter in kilometers (1 km = 1000 m).



  10. On some of the Copernicus images, it is possible to see that the walls are terraced. How many terraces do you see on Copernicus' walls?


  11. What is the height of each terrace (in pixels)?



    Convert this distance to kilometers.



  12. What do you think caused the damage to the crater edges?



  13. Can you think of a reason for the craters to be in such a nice straight line?