High resolution observations of a M5.4 flare


Kucera A.1, Wöhl H.2, Rybák J.1, Gömöry P.1, Tomasz F.1

1 Astronomical Institute of the Slovak Academy of Sciences, SK-05960 Tatranská Lomnica, Slovakia
2 Kiepenheuer-Institut für Sonnenphysik, D-79104 Freiburg, Germany


Abstract: 
H-alpha observations of a M5.4 flare taken in the active region NOAA 10646 with the Vacuum Tower Telescope at Observatorio del Teide, Tenerife, on July 13, 2004 are presented. The temporal evolution of the area of the flare and its morphological changes are investigated and discussed. Simultaneous observations of the flare in EUV lines taken with SOHO/CDS instrument are shown and additional data from GOES-10 instrument are compared.