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Astronomical Telescope

    A telescope is an instrument that aids in the observation of remote objects by collecting electromagnetic radiation (such as visible light). The first known practical telescopes were invented in the Netherlands at the beginning of the 17th century, using glass lenses. They found use in terrestrial applications and astronomy.

    Within a few decades, the reflecting telescope was invented, which used mirrors. In the 20th century many new types of telescopes were invented, including radio telescopes in the 1930s and infrared telescopes in the 1960s. The word telescope now refers to a wide range of instruments detecting different regions of the electromagnetic spectrum, and in some cases other types of detectors.

    The word "telescope" (from the Ancient Greek τῆλε, tele "far" and σκοπεῖν, skopein "to look or see"; τηλεσκόπος, teleskopos "far-seeing") was coined in 1611 by the Greek mathematician Giovanni Demisiani for one of Galileo Galilei's instruments presented at a banquet at the Accademia dei Lincei. In the Starry Messenger, Galileo had used the term "perspicillum".

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Astronomical Best Telescope - Refractor - F1200127EQIVA
      Chongqing DCHCoast Import & Export Co., Ltd. Located in south-west o..
Astronomical Reflective Telescope - Newtonian Reflector Telescope - F800203EQIVA
      Chongqing DCHCoast Import & Export Co., Ltd. Located in south-west o..
Astronomical Refracting Telescope - Refractor - F700127EQIVA
      Chongqing DCHCoast Import & Export Co., Ltd. Located in south-west o..
Astronomical Refractor Telescope - F90060M
      Chongqing DCHCoast Import & Export Co., Ltd. Located in south-west o..
Astronomical Telescope - Newtonian Reflecting Telescope - F750150EQIIIA
      Chongqing DCHCoast Import & Export Co., Ltd. Located in south-west o..
Astronomical Telescope - Newtonian Reflector Telescope - F1400150EQIIIA
      Chongqing DCHCoast Import & Export Co., Ltd. Located in south-west o..
Astronomical Telescope - Newtonian Reflector Telescope - F70076M
      Chongqing DCHCoast Import & Export Co., Ltd. Located in south-west o..
Astronomical Telescope - Newtonian Reflector Telescope - F900114EQIIIM
      Chongqing DCHCoast Import & Export Co., Ltd. Located in south-west o..
Astronomical Telescope - Refractor - F1200150EQIV
      Chongqing DCHCoast Import & Export Co., Ltd. Located in south-west o..
Astronomical Telescopes For Sale - Refractor - F60050MII
      Chongqing DCHCoast Import & Export Co., Ltd. Located in south-west o..
Astronomical Types Of Telescopes - Refractor - F60050M
      Chongqing DCHCoast Import & Export Co., Ltd. Located in south-west o..
Telescopes for Kids - F36050N
      Chongqing DCHCoast Import & Export Co., Ltd. Located in south-west o..