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GROUP 1

GROUP 1. Aden Harili Agnes Septiani Alvia Hamulatsari Anindhita Harwati Anton Wahyono. Presentation Proposal Telescope Star The materials to make telescope : Timber Carton Lens Nail Glue Pack suttle cock. How to make telescope : Cut 3 timbers with the long 120 cm.

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GROUP 1

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  1. GROUP 1 Aden Harili Agnes Septiani AlviaHamulatsari AnindhitaHarwati Anton Wahyono

  2. Presentation Proposal Telescope Star The materials to make telescope : • Timber • Carton • Lens • Nail • Glue • Pack suttle cock

  3. How to make telescope : • Cut 3 timbers with the long 120 cm. • Arranged the 3 timbers for buffer the telescope. • Stick the carton to pack suttle cock agree with focus (Fob + Fok). • Cut the carton. • Stick on the timber. • Enter telescope in the stick. • Pair the lens in telescope.

  4. The picture of star telescope

  5. Objective Lens : Distance shadow : 20 cm Distance object : 18 cm Diameter : 5 cm • Okuler Lens : Distance shadow : 50 cm Distance object : 73 cm Diameter : 5 cm

  6. Look for Objective Lens 1/f = 1/s + 1/s’ = 1/18 + 1/20 = 10/180 + 9/180 = 19/180 F = 180/19 = 9,47

  7. Look for Okuler Lens 1/f = 1/s + 1/s’ = 1/73 + 1/50 = 50/3650 + 73/3650 = 123/3650 F = 3650/123 = 29,674 D = Lob + Lok = 9,47 + 29,674 = 39,144

  8. ….Thank you for your attention, I hope that useful for us….

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