What type of telescope is a Dobsonian?Ī Dobsonian telescope (which utilizes a mirror rather than a lens) is similar in design to a Newtonian telescope in that it is a reflecting telescope (concave collecting mirror is at the rear of the telescope tube, eyepiece is on the side of tube, up near the front). Due to the ability of a parabolic mirror to concentrate all of the light into one spot, it produces sharper images than a conventional spherical mirror…. With several metals and polishing procedures under his belt, he eventually developed his first reflecting telescope, which he completed by 1668. It served as a prototype for a device that would eventually become known as the Newtonian telescope.įor focusing the light from a star, Newton chose to employ a mirror rather than a lens. What type of telescope was first successfully built by Newton?Ī historical milestone in the history of astronomy, the first known successful reflecting telescope made by Sir Isaac Newton in 1668 is considered to be one of the most important in the world. It consists of a concave primary mirror and a flat diagonal secondary mirror, and it is used to observe objects in the night sky. The Newtonian telescope, also known as the Newtonian reflector or simply the Newtonian, is a type of reflecting telescope invented by the English scientist Sir Isaac Newton (1642–1727). 11 Did Newton invent the reflector telescope?.7 Who actually invented telescope 1608?.6 What type of telescope did Isaac Newton invent in 1668?.
5 What type of telescope is a Dobsonian?.3 What did Newton do with his telescope?.2 What type of telescope was first successfully built by Newton?.
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