• Simple reflecting telescope made with high quality front surface mirror!
  • Remind students to keep hands off the mirrors and lenses.






       (use a globe on a box for a distant object)
       (primary mirror is 8"diam., __ focal length; secondary is 1" plane mirror; eyepiece is ___ cm focal length)
       (put bases of secondary mirror and eyepiece together at ~ 90 cm from primary mirror)

  • Simple refracting telescope.
  • Remind students to keep hands off the lenses.






       (use a globe on a box for a distant object)
       (primary is 12" diam., __ focal length; eyepiece is __ cm focal length)
       (distance between bases should be ~ 30 cm)

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