When do the Aurora Australis usually appear?

The Southern Lights generally occur during the polar night period. The winter in the Southern Hemisphere is the time when the Southern Lights erupt intensively: May to August. The best place to see the Aurora in the Southern Hemisphere must be the southern tip of Australia. Tasmania.

The place where the Southern Lights most often appear is in the ring-shaped area near 67 degrees of the southern magnetic dimension, which is called the Southern Aurora Zone. Auroral activity occurs almost every day in the aurora zone. The shape of the aurora is sometimes stable and sometimes changes continuously, usually in the form of a belt, arc, curtain or emission.

The reasons for the formation of the Southern Lights:

The sun is a huge and hot gas ball. Nuclear reactions of various chemical elements are going on inside and on its surface, producing powerful electrical charges. A stream of particles is emitted from the sun and shoots into the surrounding space at extremely high speeds.

When this stream of charged particles enters the thin high-altitude atmosphere outside the earth, it is attracted to the poles by the earth's magnetic field, and violently collides with the molecules of the thin gas, thus producing a luminous phenomenon. This is aurora.

Reference for the above content:

Baidu Encyclopedia - Aurora Australis (Aurora Australis appearing in the Southern Hemisphere)