Observing the Sun with Coronado Telescopes Telescopes
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- Engels
- Paperback
- 9780387681269
- 07 november 2007
- 320 pagina's
Samenvatting
At around the turn of the millennium, the introduction of the Coronado range of solar telescopes and filters heralded the ‘coming of age’ of amateur solar astronomy.
Before then, solar astronomy was mostly white-light only. Hydrogen-alpha systems were expensive and difficult to use, but today even the budget-priced Coronado PST (Personal Solar Telescope) provides a band pass of one Angstrom and is thermally stable. That means that today’s amateur solar observers can see – and image – sunspots, flares, prominences, plage, filaments, and active regions of the Sun, all in amazing detail.
Getting the very best out of a Coronado solar telescope still requires knowledge of specialist techniques and an accumulation of experience, which are what this book provides. In Observing the Sun with Coronado Telescopes, Philip Pugh has assembled a team of contributors who show just how much solar work can be done with Coronado telescopes, and explain how to get the very best from these marvellous instruments.
The spectacular solar images reproduced in this book speak for themselves – listen to the voices of the experts!
Scientists will often tell you that now is the most exciting time for a particular interest. We will always have just discovered or invented something that will “revolutionize” something or the other. The computer on which I am typing this, for example, is four times faster than its predecessor and slightly cheaper. However, the last decade or so has seen some advances that have changed the face of amateur solar astronomy. Professional researchers have been using many of the tools and techniques for years but now they are available to amateurs as well. The use of digital photography and computers has changed all astronomy, not just amateur solar astronomy, and it has certainly made a lot more techniques available for photographing the Sun. Secondly, the use of “white light” solar filters has improved the detail that can be seen on the solar surface. In the past, the only technique that was available was projection onto a piece of white paper or card. Thirdly, the use of hydrogen alpha filters has recently hit the “affordability barrier” of $500 or £500 for many amateur astronomers. The Coronado Personal Solar Telescope (PST) is a real breakthrough product that has now brought a fascinating branch of astronomy within the reach of many people. In recent months, the same technique has been applied to calcium K filters.
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- Oorspronkelijke releasedatum
- 07 november 2007
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- 320
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- Hoofdauteur
- Philip Pugh
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- Springer-Verlag New York Inc.
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- 2007 ed.
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- 154 mm
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- 233 mm
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- 155 mm
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- 718 g
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- 9780387681269
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