GREG PIEPOL / SCIENCE PHOTO LIBRARY GREG PIEPOL / SCIENCE PHOTO LIBRARY
A 400,000 mile filament flows across this full disk hydrogen-alpha image of the Sun. A single Earth-sized sunspot sits among the millions of individual spicules that cover the sun. Equipment Data: Coronado SolarMax .7 angstrom hydrogen-alpha filter; Tele Vue TV-102 telescope at 880mm focal length; Santa Barbra Instruments ST-2000XM camera. A single exposure of .004 second.
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