K-Cor image 3 CR before August 21st eclipse

The NCAR K-Cor coronagraph in Hawaii records artificial eclipse images. The Sun takes 27.3 days to rotate as seen from Earth. The corona usually changes slowly so we can imagine what the eclipse will look like using pictures of the corona taken a few solar rotations before the eclipse. The 1/2 rotation image is flipped left-to-right to make it look like a full solar rotation.

2017-05-31, 3 solar rotations before August eclipse