This is the sun in Calcium-K light. It's the wavelength that makes it look lavender. It shows the structure of the active regions very clearly. I took an image a day for two weeks and made a little video so you can see how it rotates.
This is the sun in Calcium-K light. It's the wavelength that makes it look lavender. It shows the structure of the active regions very clearly. I took an image a day for two weeks and made a little video so you can see how it rotates.
