![SHARPSTAR 13028HNT Hyperboloid Newton Reflector Mirror Newtonian Telescope Astrograph Super Fast Focal Ratio| | - AliExpress SHARPSTAR 13028HNT Hyperboloid Newton Reflector Mirror Newtonian Telescope Astrograph Super Fast Focal Ratio| | - AliExpress](https://ae01.alicdn.com/kf/Hadd2c7080c7b4b828592ae8e078887f6K/SHARPSTAR-13028HNT-Hyperboloid-Newton-Reflector-Mirror-Newtonian-Telescope-Astrograph-Super-Fast-Focal-Ratio.jpg_Q90.jpg_.webp)
SHARPSTAR 13028HNT Hyperboloid Newton Reflector Mirror Newtonian Telescope Astrograph Super Fast Focal Ratio| | - AliExpress
![Sir Isaac Newton's reflecting telescope, known also as the Newtonian telescope. It worked by concentrating light by reflection from a parabolic mirror, instead of by refraction through a lens. Newton (1642-1727) first Sir Isaac Newton's reflecting telescope, known also as the Newtonian telescope. It worked by concentrating light by reflection from a parabolic mirror, instead of by refraction through a lens. Newton (1642-1727) first](https://l450v.alamy.com/450v/2be0g89/sir-isaac-newtons-reflecting-telescope-known-also-as-the-newtonian-telescope-it-worked-by-concentrating-light-by-reflection-from-a-parabolic-mirror-instead-of-by-refraction-through-a-lens-newton-1642-1727-first-displayed-this-telescope-to-king-charles-ii-based-on-a-design-of-1668-it-had-a-focal-length-of-15cm-and-could-magnify-30-40-times-inadequate-mirrors-meant-that-the-newtonian-reflector-was-not-as-refined-as-contemporary-refracting-telescope-until-1722-when-james-haley-ground-a-quality-parabolic-mirror-this-drawing-was-published-in-the-philosophical-transactions-of-the-royal-2be0g89.jpg)
Sir Isaac Newton's reflecting telescope, known also as the Newtonian telescope. It worked by concentrating light by reflection from a parabolic mirror, instead of by refraction through a lens. Newton (1642-1727) first
![19th Century Model Of Newtons Reflecting Telescope Photograph by Royal Greenwich Observatory/science Photo Library 19th Century Model Of Newtons Reflecting Telescope Photograph by Royal Greenwich Observatory/science Photo Library](https://images.fineartamerica.com/images/artworkimages/mediumlarge/2/19th-century-model-of-newtons-reflecting-telescope-royal-greenwich-observatoryscience-photo-library.jpg)