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P.O. Box 79, Crowell, TX 79227

Tel: 940.684.1670 • Fax: 940.684.1678


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Three Rivers Foundation for the Arts and Sciences

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Active Region on the Sun

Active Region on the Sun — This image by Jeff Barton shows an active region which includes two large sunspots, active flares, and filaments. The solar telescope has a bandwidth of about one-half angstrom and is tuned to the wavelength of hydrogen alpha light.