[gigonaut]

Not sure if this is relevant or not, but it might be worth adding that the little dipper is not visible from the southern hemisphere.

[lisper]

Given that the sculpture is in Australia, that seems like a plausible clue to me.

[pmayrgundter]

Yeah, it's a good point. The end of the handle for the Little Dipper is Polaris, the North Star

I have it lined up now in Celestia, to see how it would project relative to someone looking down on the columns in Canberra from above, and seeing the LD thru the Earth. The whole constellation is flipped left-right, and would always be a bit under the horizon looking North, and skewed if projected on the ground plane.

Also filtered down to only visible stars.. looks more like HIP 90182

https://www.universeguide.com/star/90182/hip90182

Another thing, pillar 4 (pillar instead of column on dcrypt.org) uses a constellation encoding

https://www.dkrypt.org/Pillar_4