4394 20191220170043.0 POSTER-2019-0128 Mierla, Marilena Long-term evolution of the solar corona using PROBA2 data 2019 2019-11-18 Session 5, poster 5.p16 STCE D’Huys, Elke Janssens, Jan Wauters, Laurence West, Matthew J. Seaton, Daniel B. Berghmans, David Podladchikova, Elena 16th European Space Weather Week, Liège (Belgium) david.berghmans@observatoire.be http://www.stce.be/esww2019/ CPOSTER