Hi Venessa, and welcome to IIS.
although I can't tell you what it was, I saw a similar blinking light around 10:30pm on the 30th of November, while at our our farm in central Victoria. I'm pretty confidant it would have been invisible under light polluted sky's.
You describe exactly what I saw, although it appeared to be moving very very slowly, I don't think this was an illusion due to the background stars moving, as it appeared to be moving NNE. It was somewhere near the constellation 'Pictor', I believe.
Jarrod
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