From the National Optical Astronomical Observatories
A false color picture of a sunspot taken with the National Solar Observatory's Vacuum Tower Telescope at the Sacramento Peak Observatory, showing features on a scale of about 100 km. Note striated penumbra surrounding the dark umbra and the photospheric granulations in the regions away from the sunspot.
Image Title: Sunspot as seen by the Vacuum Tower Telescope
Credit: T. Rimmele, M. Hanna/AURA/NOAO/NSF
Text based on accompanying on-line materials.
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Last Modified On: Saturday, December 16, 2000