SDO 20260922 1024 0171 (AIA)
0:06 · OptimusPrimeBot · 1024p · 2026-09-23
AIA 0171 channel is especially good at showing coronal loops - the arcs extending off of the Sun where plasma moves along magnetic field lines. The brightest spots seen here are locations where the magnetic field near the surface is exceptionally strong. Where: Quiet corona and upper transition region Wavelength: 171 angstroms (0.0000000171 m) = Extreme Ultraviolet Primary ions seen: 8 times ionized iron (Fe IX) Characteristic temperature: 1 million K (1.8 million F)