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In the 1980’s, on the sidewalks of San Francisco, amateur astronomer John Dobson began showing throngs of people how to build and use large aperture scopes, often from scraps. The Dobsonian,‘Dobs,’ are now the best-selling large telescopes in the world. There are a great variety of different Dob styles, ranging from elaborate and decorative creations to simple mass market designs, and new models appear all the time. In this title, Neil English presents the ultimate guide to buying and using a commercial Dobsonian for recreational astronomy. He provides in-depth accounts of the various models (plus accessories) on the market – both economy and premium – together with describing the wealth of innovations that amateurs have made to their Dobs to optimize their performance in the field. Even after thirty years of innovation, the Dobsonian Revolution shows no signs of abating. Find out where the future lies for these large aperture ‘scopes and the exciting avenues John Dobson’s vision will take us down in the coming years.

Dobsonian telescopes -- Automation. --- Dobsonian telescopes -- Design and construction. --- Dobsonian telescopes. --- Telescopes -- Automation. --- Dobsonian telescopes --- Astronomy & Astrophysics --- Physical Sciences & Mathematics --- Astronomical Observatories & Instruments --- Astronomy - General --- Telescopes. --- Astronomy. --- Astronomical telescopes --- Optical telescopes --- Telescope --- Physics. --- Observations, Astronomical. --- Astronomy --- Astronomy, Observations and Techniques. --- Popular Science in Astronomy. --- Observations. --- Physical sciences --- Space sciences --- Astronomical observations --- Observations, Astronomical --- Natural philosophy --- Philosophy, Natural --- Dynamics --- Astronomical instruments --- Optical instruments --- Astronomy—Observations.

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Classic Telescopes explores the exciting world of telescopes past, as well as the possibilities involved in acquiring these instruments. What are classic telescopes? First, the book takes a look at the more traditional telescopes built by the great instrument makers of the eighteenth and nineteenth centuries and the dynastic houses founded by the likes of John Dollond, Alvan Clark, Thomas Cooke & Sons and Carl Zeiss, plus some lesser-known luminaries, including John Brashear, John Calver, and Henry Fitz. Instruments constructed from the 1950s until as recently as the early 1990s are now also considered 'classic.' There is thus a very active market for buying and selling these 'modern' classics. The author examines some of the most talked about instruments on the amateur Internet forums, including the Unitron refractors, the Questar 90, a classic 6-inch reflector, the RV-6; a 3-inch F/15 achromat by Fullerscopes; the time-honored AstroScan Richfield reflector; and many, many more. Classic telescopes are of interest to amateur astronomers for a variety of reasons. There are, of course, the dedicated collectors, but in addition many amateurs love classic telescopes for their nostalgia. These telescopes have a fit and feel quite unlike any contemporary telescope and perhaps a unique ability to reconnect the owner to a bygone age of craftsmanship. This book not only informs as to what's out there and how to acquire it but also provides a wonderful historical background on the evolution of telescopes in a world just beginning to recognize the treasures to be found in scanning the skies. Just reading about this world can help you feel a part of it, and if you decide to continue on with collecting, then this book can serve as an invaluable guide in your pursuit.

Astronomy. --- Telescopes --- Astronomy & Astrophysics --- Physical Sciences & Mathematics --- Astronomy - General --- Astronomical Observatories & Instruments --- History --- Design and construction --- Collectors and collecting --- Astronomical telescopes --- Optical telescopes --- Telescope --- Collectors and collecting. --- Conservation and restoration. --- Physics. --- Observations, Astronomical. --- Astronomy --- Astronomy, Observations and Techniques. --- Popular Science in Astronomy. --- Observations. --- Astronomical instruments --- Optical instruments --- Astronomy—Observations. --- Astronomical observations --- Observations, Astronomical

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The invention of the telescope at the dawning of the 17th century has revolutionized humanity's understanding of the Universe and our place within it. This book traces the development of the telescope over four centuries, as well as the many personalities who used it to uncover brand-new revelations about the Sun, Moon, planets, stars and distant galaxies. Starting with early observers such as Thomas Harriot, Galileo, Johannes Hevelius, Giovanni Domenico Cassini, Robert Hooke and Christian Huygens, the book explores how these early observers arrived at essentially correct ideas concerning the objects they studied. Moving into the 18th and 19th centuries, the author describes the increasing sophistication of telescopes both large and small, and the celebrated figures who used them so productively, including the Herschels, Charles Messier, William Lassell and the Earls of Rosse. Many great discoveries were also made with smaller instruments when placed in the capable hands of the Struve dynasty, F.W. Bessel, Angelo Secchi and S.W Burnham, to name but a few. Nor were all great observers of professional ilk. The book explores the contributions made by the 'clerical astronomers,' William Rutter Dawes, Thomas William Webb, T.E.R Philips and T.H.E.C Espin, as well as the lonely vigils of E.E. Barnard, William F. Denning and Charles Grover. And in the 20th century, the work of Percival Lowell, Leslie Peltier, Eugene M. Antoniadi, Clyde Tombaugh, Walter Scott Houston, David H. Levy and Sir Patrick Moore is fully explored. Generously illustrated throughout, this treasure trove of astronomical history shows how each observer's work led to seminal developments in science, and providing key insights into how we go about exploring the heavens today.

Astronomy --- History. --- Technology-History. --- Astronomy, Observations and Techniques. --- History of Science. --- History of Technology. --- Annals --- Auxiliary sciences of history --- Observations, Astronomical. --- Astronomy—Observations. --- Technology—History. --- Astronomical observations --- Observations, Astronomical

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Science --- Space research --- Astrophysics --- Astronomy --- astrofysica --- popularisering wetenschap --- ruimte (astronomie) --- astronomie

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  Like everyone else, most amateur astronomers live busy lives. After a long day, the last thing you want as an observer is to have to lug out a large telescope and spend an hour getting it ready before it can be used. Maybe you are going somewhere sure to have dark skies, but you don’t necessarily want astronomy to dominate the trip. Or you are not quite committed to owning a large telescope, but curious enough to see what a smaller, portable setup can accomplish. These are times when a small “grab ’n’ go” telescope, or even a pair of binoculars, is the ideal in­strument. And this book can guide you in choosing and best utilizing that equipment.   What makes a telescope fall into the “grab ’n’ go” category? That’s easy – speed of setting up, ease of use, and above all, portability. This ambitious text is dedicated to those who love to or – because of their limited time – must observe the sky at a moment’s notice. Whether observing from the comfort of a backyard or while on business or vacation far from home, everything you need to know is here. So get started!!     -          Surveys the pros and cons of the various types of equipment, includ­ing accessories and mounts, that are available.   -          Advises how to use your grab ’n’ go telescope to visit a wealth and wide variety of objects, from solar, lunar and planetary observ­ing to hunting deep sky objects of all kinds.

Science --- Space research --- Cosmology --- Physics --- astrofysica --- popularisering wetenschap --- fysica --- ruimte (astronomie) --- astronomie --- kosmologie