A brief description of the concepts is provided in each box. Many questions utilize charts, diagrams, photographs and data included in the module. In most questions students are expected to reach conclusions based on the figures and data.

Graphic from Module - Clcik for Large View Observational (ATPI)
Investigation #13 - Sidereal Time
  • Question using the Equation of Time including development of local solar time and mean solar time concepts.
  • Conversion of standard time to sidereal time using a simplified and exact step- by-step procedure.
  • Use of the celestial sphere diagram to apply the concepts of sidereal time, hour angle and equatorial coordinates.
  • Locating celestial objects in the observer's sky.
  • Practical questions estimating the sidereal time from a star background.
Other Observational Modules:
#6| #7| #8| #9| #11| #12| #14| #15| #20| #22| #23| #24| #25

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