Questar Telescope

Unusual Telescopes by Peter L. Manly, X

In this book, Peter Manly surveys more than 150 unusual telescope designs. These are telescopes built by amateur questar telescope and professional astronomers to suit some special need. There is, for instance, an inflatable telescope questar telescope and one with a liquid mirror. Every so often a neglected design comes back into fashion: the largest telescopes now under construction use the alt-azimuth design that was ignored for over a century, questar telescope and liquid mirror telescopes can be used for zenithal astronomy. The author shows why a particular engineering approach makes each telescope unique questar telescope and explains the rationale behind the design. The effects on telescope performance are discussed where possible. This is not just a collection of weird questar telescope and wonderful devices that proved to be false starts; the author also discusses the first instrument to measure star diameters questar telescope and the first useful radio telescope. This book is a resource questar telescope and stimulus for anyone who likes to build astronomical telescopes or is interested in the history of telescope-making.
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Schmidt-Cassegrain telescope - A Schmidt-Cassegrain Telescope, invented by Bernhard Schmidt, is a catadioptric telescope. This type of telescope is advantageous because it combines the long focal length of the refracting telescope with the lower cost per aperture of the reflecting telescope.

Dobsonian telescope - In amateur astronomy the Dobsonian telescope is a type of telescope design that has become popular because it allows for the building of extremely simple and rugged large-aperture telescopes at low cost. The term "Dobsonian" or "Dob" refers to any telescope with an alt-azimuth mount and a Newtonian telescope tube ...

Overwhelmingly Large Telescope - The Overwhelmingly Large Telescope (OWL) is a conceptual design by the European Southern Observatory organization for a telescope which is intended to have a single aperture of 100 meters in diameter. Because of the complexity and cost of building a telescope of this unprecedented size, ESA has elected to focus on the less ambitious 42 meter diameter Extremely Large ...

Extremely Large Telescope - The European Extremely Large Telescope (E-ELT), sometimes just called the Extremely Large Telescope (ELT), is a proposed design for the next-generation European Southern Observatory optical telescope with a mirror diameter between 30 and 60 meters. ESO is focusing on this design after a feasibility study concluded that the proposed 100m diameter Overwhelmingly Large ...

Questar Corporation - Questar Corporation High quality Maksutov Catadioptric telescopes for astronomy, nature, science and surveillance applications. Entire product line features superior optical performance, machining and finish. Established in 1950.

Questar Corporation - Questar Corporation Manufacturer of a classic design telescope.

questartelescope

Questar Telescope - Questar Telescope Schmidt-Cassegrain telescope - A Schmidt-Cassegrain Telescope, invented by Bernhard Schmidt, is a catadioptric telescope. This type of telescope is advantageous because it combines the long focal length of the refracting telescope with the lower cost per aperture of the reflecting ...