The Sun Right Now!These images were taken within the last few minutes by the Solar Dynamics Observatory. Each color represents a different set of mirror coatings, which only allow one particular wavelength of ultraviolet light to be detected at a time. These wavelengths were selected because they correspond to particular ions which are known to exist at different temperatures. Wavelengths are listed in angstroms, which are 1/10th of a nanometer.
Find out more on wikipedia!
The images on the left have been radially normalized using the Quantile Radial Normalization (QRN) (Gilly & Cranmer 2022, in prep) algorithm to bring out the detail in the upper atmosphere, as compared with the original images on the right.
These images are from:
My apologies: the AWS server running this site has been messing up for a few months now, so the page only updates when I run the script on my PC. There should be a fix coming soon.