Apparently, it's the Australian cricket team's victory song ("with a sprig of wattle in my hand" etc). But that's not the Southern Cross' fault.
Here it is, complete with Pointers, power pylon, and a hint of Milky Way, taken from Sydney's northern suburbs, and suffering inevitably from a fair bit of light pollution. Compare the Milky Way's visibility with that from a few weeks ago out in the bush, here: http://sydneysapiential.blogspot.com.au/2017/04/kanangra-skies.html
