Hi all, here's a review of my Coronado Personal Solar Telescope. This marvelous little 40mm scope allows you to observe our closest star, the sun. Just 93 million miles away, looking directly at the sun is dangerous and can cause permanent damage to your vision -- but not when you have a specialized H-alpha solar telescope like this one!
This telescope has a special filter, called an "Etalon" that takes the powerful light from the sun and brings it down to a safe Hydrogen-Alpha viewing wave-length that the human eye can safely observe, all day long. Matter of fact, looking at the unfiltered full moon through a telescope can cause more (temporary) discomfort to your eyeball than this solar telescope. It's quite extraordinary. Even more exciting, this solar telescope doesn't cost thousands of dollars, you can find them for under $500 used!
21 дек 2022
