Waspie_Dwarf Posted June 27, 2016 #1 Share Posted June 27, 2016 Seeing Sunspots as Early Astronomers Did Quote Astronomers have reconstructed 18-century telescopes to observe sunspots and better understand solar cycles. Astronomers have been counting sunspots — the most accessible tool they’ve had to measure solar activity — for the past 400 years. In more recent times, technology has advanced, making it easier to pick out smaller sunspots or even measure the magnetic field directly. But some astronomers are now turning back the clock. They’re reconstructing ancient telescopes to observe sunspots as our forebears did to better understand the Sun’s evolution. Read more: Sky & Telescope 2 Link to comment Share on other sites More sharing options...
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