I get this information from the Spaceweather.com website where the daily Sun is posted from NASA’s Solar Dynamic Observatory at: https://sdo.gsfc.nasa.gov
It helps me to orientate my solar images and to name them their numbers on the image.
Images taken with a Canon 70D camera and a Canon 100-400mm lens with a 2x teleconverter attached making a focal length of 1280mm. An Orion glass solar filter was fitted to the lens for safe imaging and viewing of the Sun.
Twenty images were captured with 1/500th second exposures and ISO100, pictures were stacked in RegiStax6 and processed in PS CS4.