Coronal radio emissions at metric wavelengths imaged by the NRH are displayed as a movie. Each image is normalised to its own maximum so that the evolution of the brightness cannot be read from the movie. However, the instant of the image is overplotted as a running vertical bar onto the flux density time history which is plotted at the top of each image.
Solar north is at the top, solar west to the right of the maps.
The white circle denotes the photospheric disk. The movie displays the first tens of minutes of a radio event which lasted several hours. During the period shown here the sources have a remarkable complexity and are spread throughout a large part of the corona. Weaker sources are seen in the southern hemisphere and above the south-western limb. Although the electrons are not very energetic, their plasma emission is so bright that it outshines the thermal emission from the quiet corona.