Spring Star Wheels Lab Report

 

                                                              Spring Star Wheels Lab Report

 Download Uncle Al’s Sky Wheels

  • Use the Star Wheel you made in lab. (50 points)
  • Align the date on the disk with the time on the holder, and then look up at the sky.
  • Locate the constellation you want to find on the disk.
  • Turn your Star Wheel so that the horizon you are facing is at the bottom.
  • Important: choose one bright star in each constellation for your measurements.
  • Answer questions 1-4 with one word or a phrase. Complete Table 1 and questions 5 & 6.
  • Neatness and accuracy count.

 

  1. Set the Star Wheel so the constellation Canis Major is on the eastern horizon.
    1. At what point on the horizon (exactly east? southeast? north-northeast?) and when will a bright star in Canis Major rise today?

 

 

  1. Turn the disk counterclockwise to simulate the passage of time until Canis Major is on the western horizon. When and where will that bright star in Canis Major set?

 

 

  1. How long (hours and minutes) will that bright star in Canis Major be in our sky during one day (a 24-hour period)?

 

 

 

  1. Set the Star Wheel so the constellation Orion is on the eastern horizon.
    1. Where and when will a bright star in Orion rise?

 

 

  1. Turn the disk to simulate the passage of time until Orion is on the western horizon. Where and when will that bright star in Orion set?

 

 

  1. How long will that bright Orionid star be in our sky during one day?

 

 

 

  1. Set the Star Wheel so the constellation Leo is on the eastern horizon.
    1. Where and when will a bright star in Leo rise?

 

 

  1. Turn the disk to simulate the passage of time until Leo is on the western horizon. Where and when will that bright Leonid star set?

 

 

  1. How long will that bright Leonid star be in our sky during one day?

 

 

 

  1. Set the Star Wheel so the constellation Lyra is on the eastern horizon.
    1. Where and when will a bright star in Lyra rise?

 

 

  1. Turn the disk to simulate the passage of time until Lyra is on the western horizon. Where and when will that bright star in Lyra set?

 

 

  1. How long will that bright Lyrid star be in our sky during one day?

 

 

Table 1: Constellations in our Sky

3 pts each               2 pts each         2 pts each            2 pts each

Constellation Rising Horizon Rising time Setting Time Time in the Sky
Canis Major        
Orion        
Leo        
Lyra        

 

  1. You have now examined the rising and setting times and positions of four different constellations. Compare their locations with the total amount of time each will be in our sky. What pattern do you notice? If you don’t notice a pattern, you should review your work and look again. Include enough detail in your answer so your instructor is convinced that you understand the concept. (7 points)

 

Pattern:

 

 

Detail:

 

 

Detail:

 

 

  1. Set the Star Wheel for 10 PM tonight. Find the constellation Ursa Minor. Turn the disk counter-clockwise to simulate the passage of time. Describe what happens to Ursa Minor, including where it goes, what it does and how long it takes. Does Ursa Minor follow the pattern you noticed in #5 above?   If not, describe the new pattern, the “rule” that includes all five of these constellations.   Include enough detail so your instructor is convinced that you know what’s going on. (7 points)

 

Ursa Minor’s pattern:

 

Does Ursa Minor follow your original pattern? (circle one)       Yes         No

 

New Rule:

 

Detail:

 

 


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