Boek
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 provides a band pass of one Angstrom and is thermally stable. That means that today's amateur solar observers can see 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. «
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