SDO AIA 4500 Angstrom

AIA 4500 Å - Solar Region: Photosphere
White light continuum, shows the sun's surface or photosphere in visible light; Continuums provide photographs of the solar surface, incorporating a broad range of visible light in the temperature of 5,000-6,000 Kelvin and appears in bright yellow. Credit: NASA/SDO/Goddard
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How SDO Sees the Sun

The sun emits light in all colors, but since yellow is the brightest wavelength from the sun, that is the color we see with our naked eye. Specialized instruments can observe light far beyond the ranges visible to the naked eye. Different wavelengths convey information about different components of the sun's surface and atmosphere.

The Solar Dynamics Observatory, or SDO, images 10 different wavelengths, measured in angstroms (Å), with its Atmospheric Imaging Assembly (AIA) instrument. SDO’s Helioseismic and Magnetic Imager (HMI) instrument focuses on the movement and magnetic properties of the sun's surface and provides 3 additional images.

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Page Last Updated: August 4th, 2014
Page Editor: Holly Zell