Fig. 13From: A new five-wavelength photometer operated in Tromsø (69.6°N, 19.2°E)Temporal variations of the auroral emissions (1 s averaged) obtained with the photometer with five wavelengths between about 15:16 UT on January 22, 2018, and about 06:35 UT on January 23, 2018. The emissions of 427.8 nm, 557.7 nm, 630 nm, 777.4 nm, and 844.6 nm (1 s averaged data) are presented from top to bottomBack to article page