|***THE SUN AND SUNSPOTS***| The Sun has a diameter of approximately 865,000 miles (nearly 10 times larger than the diameter of Jupiter) Since looking directly at the Sun with the naked eye permanently damages vision, generally conducted indirectly using projected images, or directly through protective filters. Small sections of very dark filter glass, such as a #14 welders glass are effective. A telescope eyepiece can project the image, A sunspot is build out of two parts: The dark part (umbra) Lighter part around the dark part (penumbra) images will help you to understand
Posted on: Thu, 07 Aug 2014 05:35:01 +0000
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