the aurora australis
noun [ S ] uk/əˌrɔː.rə ɒsˈtreɪ.lɪs/ us/əˌrɔːr.ə ɔːˈstreɪ.lɪs/ (also the Southern Lights)
南极光
a pattern of differently coloured lights that are sometimes seen in the night sky in the most southern parts of the world
Compare: the aurora borealis