Awasome Northern Lights Different Colors 2023. Above 120 miles, oxygen causes a red aurora; Auroras in the southern hemisphere are known as the southern lights, or aurora australis.
The color depends on the height, with the red lights produced at heights above 240 kilometers, blue lights below 95 kilometers (60 mi), and purple lights at the distance in between the two. When the red light overlaps blue light, you see purple or sometimes vivid pink. Web learn all about the northern lights, including the science behind their colors, the display's ancient history and how to see the phenomenon.
