Aurora Borealis on the night 10/11 May 2024 over the University Observatory Jena 

Fig. 1: Aurora Borealis, imaged with the GSH Skycam over the University Observatory Jena. A movie of the aurora borealis (between 22 and 4 CET) can be downloaded here. 

Fig. 2: Emission lines, detected in the spectrum of the Aurora Borealis, taken with the échelle spectrograph FLECHAS at the University Observatory Jena. These emission lines of nitrogen and oxygen

in the optical spectral range are the colors of the aurora from blue to red, which are clearly visible in Fig.1.

M. Mugrauer 2024