Group 5 chloe, daria, dylan, eleanor

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Group 5 chloe, daria, dylan, eleanor

  1. 1. REFRACTOR/REFLECTORTELESCOPESBy: Chloe, Daria, Dylan, Eleanor
  2. 2. REFLECTORTwo concave mirrors make lightbounce up to another mirror, whichbounces light into the eyepiece.
  3. 3. REFRACTORRefractor telescopes use convexlenses to collect, focus, andmagnify light.
  4. 4. REFLECTOR PROS/CONSPros Cons The reflector is good  The Mirrors in the for deep-sky objects telescope have to be Large Reflectors are recoated every few very popular years in order to function properly  Its easy to damage them, they are fragile if you handle them to roughly
  5. 5. REFRACTOR PROS/CONSPros Cons The Refractor  The refractor suffers telescope is better for from chromatic observing the planets aberration and the moon  Very expensive The Refractor telescope uses lenses instead of mirrors so they don’t have to get recoated like the mirrors of the reflector telescope
  6. 6. REFLECTOR HISTORYThe Reflector Telescope was invented by a Scottishastronomer named James Gregory. James Gregorywas the one who designed in 1663 and then in 1689Isaac Newton built the first Reflector telescope.
  7. 7. REFRACTOR HISTORYThe Refractor telescope was invented by a Dutchoptician, Hans Lippershey who designed convexlenses held in front of each other, he put the lensesin a tube to make the first refractor telescope.
  8. 8. BIBLIOGRAPHY Bibliography Refractor Telescope. (1998 - 2013). Retrieved from How Stuff Works: http://science.howstuffworks.com/telescope1.htm Brain, M. (1998 - 2013). Refractor Telescope. Retrieved from How Stuff Works: http://science.howstuffworks.com/telescope1.htm "All about Telescopes: Refractors, Reflectors and More." All about Telescopes: Refractors, Reflectors and More. N.p., n.d. Web. 28 Jan. 2013. "How Telescopes Work." HowStuffWorks. N.p., n.d. Web. 28 Jan. 2013 "Reflector Telescope." Universe Today RSS. N.p., n.d. Web. 28 Jan. 2013 "Advantages and Disadvantages of Reflecting Telescopes." Yahoo! Contributor Network. N.p., n.d. Web. 28 Jan. 2013.

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