Sun at three different wavelengths

Sun at three different wavelengths

From March 20-23, 2018, the Solar Dynamics Observatory (SDO) managed to catch three sequences of our star in three different extreme UV ranges. The resulting images demonstrate how different functions that appear in one sequence cannot be or are difficult to discern in others.

In the red sequence (304 angstroms) you can see only tiny spicules-jets of solar material, as well as small prominences on the edge. In the second (193 angstroms) it turns out to observe a large and dark bloody coronal hole. In the third (171 wavelengths), one can see how plasma filaments are shown above the surface.

These are just three of the ten extreme UV wavelengths in which SDO tracks a star for 12 seconds each day.

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