Artist’s impression of the ESA/ NASA Solar and Heliospheric Observatory, SOHO, with the Sun as seen by the satellite’s extreme-ultraviolet imaging telescope on 14 September 1999. Credit: Spacecraft: ESA/ ATG medialab; Sun: ESA/ NASA SOHO, CC BY-SA 3.0 IGO...
SOHO’s EIT (Extreme ultraviolet Imaging Telescope) images the solar atmosphere at several wavelengths and, therefore, shows solar material at different temperatures. In the images taken at 304 Angstroms, the bright material is at 60,000 to 80,000°K. In those...
