Explore the Data

After downloading the solar eclipse data file, open the file in your

favorite spreadsheet program and explore what exists using the sorting

and graphing capabilities of the spreadsheet program.




    Exploration 1. Mapping the Data

  • What locations were included in the data set for solar eclipse data calculations?


  • Plot longitude vs. latutude to get a visual representation of the data set map.


  • Print the graph and sketch the coastlines of the continents represented by the data points.


  • If you're unsure if the data represents an island calculation or a mainland calculation, refer to the data to find the geographic location of the data.


  • Don't try to draw perfect coastlines, just sketch them so you can identify major landforms.


    • Exploration 2. Maximum eclipse location

    Predict where the eclipse will be total by drawing the predicted area on the map drawn in Exploration 1. (The sun was directly overhead at local noon on that day at locations with a latitude of xx degrees.)

  • Where is the maximum eclipse equal to 100% coverage of the sun? Plot these points in a separate graph.


  • Where is the maximum eclipse equal to 0-10% coverage of the sun?
  • Plot these points in a separate graph.

  • Where is the maximum eclipse equal to 10-20% coverage of the sun?
  • Plot these points in a separate graph.

  • Why does the location of maximum eclipse equal to 100% occur in one area, but the locations where the maximum eclipse equal to 0-10% occur in two areas?
  • Use the to compare the eclipse from locations in the two areas to help you answer this question.


      Exploration 3. Maximum eclipse at similar times

  • Where else is the eclipse at maximum WHEN it is maximum at a location near you?
  • Plot these locations.

  • Does this area follow a longitude line?
  • Give a possible reason for your results.


      Exploration 4.

      Exploration 5.

      Exploration 6.


    ©1998 John C. Park for Science Junction, NC State University. All rights reserved.
    URL: http://www.ncsu.edu/sciencejunction/depot/simulate/eclipse/about.html

    Last updated 3/25/98.

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