Fig. 5From: A new five-wavelength photometer operated in Tromsø (69.6°N, 19.2°E)Temporal variations of the auroral emissions obtained with the photometer with five wavelengths between about 16:34 UT on October 19 and about 04:25 UT on October 20, 2017. The emissions of 427.8 nm, 557.7 nm, 630 nm, 777.4 nm, and 844.6 nm (1 s of averaged data) are presented from top to bottomBack to article page