This handsome wall chart, covering the visible portion of the solar spectrum, shows the wavelength and letter assignment of the more prominent Fraunhofer lines. These dark lines, some narrow, some wide, are absorption lines of specific elements in the Earth's or the sun's atmosphere. Chart includes a table identifying the element responsible for each line in the spectrum and a brief history and description of Fraunhofer lines. Both colorful and informative, this chart makes an excellent teaching aid for any science classroom. Chart is heavy paper stock with metal binding strips across the top and bottom. The top strip includes two tabs for wall hanging. Measures 71 cm x 28 cm.