Les canaux de SOHO.

=> Coronographe SOHO - LASCO C2                => Coronographe SOHO - LASCO C3

Imagerie provenant du coronographe de SOHO. (Solar and Heliospheric Observatory)

Source : https://sohowww.nascom.nasa.gov/

Les canaux de SDO.

=> Canaux AIA (211,196,171...)                    => Canaux AIA (304,211,171...)

AIA = The Atmospheric Imaging Assembly.

SDO = Solar Dynamic Observatory.

Source : https://sdo.gsfc.nasa.gov/