EUV & X-Rays

The images above show the predicted coronal emission during the eclipse. The four channels shown represent measurements taken by the Solar Dynamics Observatory (SDO) and the Hinode Spacecraft, both of which continuously observe the Sun from space.

Plasma in the corona emits naturally at these wavelengths, and each channel is sensitive to different temperatures in the corona. The left three channels, SDO/AIA 171, 193, and 211 sample the corona from ~0.9 - 2.0 million degrees Kelvin, while the Hinode/XRT Ti-Poly channel has broad sensitivity for plasma above 2 million degrees Kelvin.