Possible Clues:

• Child angry about Arthur's dad's four-star arrangement
• Conspicuous constellation with four bright stars
• Six — with the exception of one — could be such stars?
• Constellation visible in Melbourne and Sydney
• 1's minimal money finds the sailors angry
• Constellation bordering Centaurus
• Constellation seen on the flags of Australia, Samoa and Papua New Guinea
• Down under, see it up over
• Constellation always seen at night here (2 words)
• Constellation invisible from Britain