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At what time will a star be seen from a place ?

  1. Jun 1, 2017 #1
    1. The problem statement, all variables and given/known data

    ?temp_hash=e0c687b59c0e0e9c6e5ee8abdf87a4ec.png
    2. Relevant equations


    3. The attempt at a solution

    Honestly speaking I have absolutely no idea about this problem . This is the first time I have seen a problem of this nature .I am not even sure which chapter of Intro Physics text does this problem belong to .

    I would really appreciate if someone could help me with the problem .

    Many thanks .
     

    Attached Files:

  2. jcsd
  3. Jun 1, 2017 #2
    I don't know but upon reading, this might give you a hint. "The North Star is visible every night in about the same place."
     
  4. Jun 1, 2017 #3
    Sorry I didn't get your hint . Could you elaborate your response .
     
  5. Jun 2, 2017 #4

    ehild

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    The Earth rotates... When does the green man see the star rising, later or sooner than the blue man does?
    upload_2017-6-2_7-52-45.png
     
  6. Jun 2, 2017 #5
    OK .

    20° longitude difference = 80 minutes

    Option d)

    Right ?
     
  7. Jun 2, 2017 #6

    ehild

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    I hope so. Supposing there are no big building or hills hiding the raising sun :)
     
  8. Jun 2, 2017 #7
    Thank you so much :smile: .
     
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