What do the smaller stars on the Australian flag stand for?
The five smaller stars on the Australian flag form the constellation of the Southern cross, which is seen only in the southern hemisphere.
They are very different. The flag of the United Kingdom, which is referred to as the British flag, appears in the top left corner of the Australian flag. The rest of the Australian flag is blue and has some stars on it, including some representing the Southern Cross, which is a constellation, and the Commonwealth Star.
The Australian and New Zealand flags are similar as they both have the British Union flag in the top left quadrant and have a blue background, but the Australian flag also carries a seven-pointed white star representing the six states with the extra point representing the Territories beneath the Union flag. Each flag depicts the Southern Cross constellation but the Australian flag shows five white stars as the Southern Cross, and the New Zealand flag…
The number of points on the stars of the Southern Cross on today's Australian flag range between five and nine points each, representing their relative brightness in the night sky. In order to simplify manufacture, the British Admirality standardised the four larger outer stars at seven points each, leaving the smaller middle star with five points.