enigmatic puzzle - Oh no, it's another safe!

^{An entry in Fortnightly Topic Challenge #32: Grid Deduction Hybrids}

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Oh, did I feel proud after solving the last safe... until I was immediately dimension-doored (or something) into this room! Damn the aliens, they still want to play around with me... Well, seems there is nothing else to do but to get that thing open and hope for the best...

(Detail image - overview)

There is of course the safe, which has two circular dials with three rotate-able sections each. Odd symbols are painted on them and there is a dimly lit display in between the dials which does not seem to do anything.

(Detail image - upper dial)
(Detail image - lower dial)

Next to the safe are two glass tables. One has 8 round inserts with strange metal connection dots in indentations, the other has 7 loose pieces lying on it. The pieces have some blue coating on the top-side but are golden on the bottom with some half-dome indentations.

(Detail image - Pieces (upside))
(Detail image - Pieces (downside))

(Detail image - Insert 1 )
(Detail image - Insert 2 )
(Detail image - Insert 3 )
(Detail image - Insert 4 )
(Detail image - Insert 5 )
(Detail image - Insert 6 )
(Detail image - Insert 7 )
(Detail image - Insert 8 )

On the wall is a shiny picture with some kind of star-map on it. I don't recognize any of the stars. The picture is some alien sort of interface maybe, because I can touch the stars and they briefly light up. Cool. There is also a little grid, but it doesn't seem to do anything.

(Detail image - Painting )

You can also inspect these objects in 3D here.

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The puzzle is 'solved' by finding the correct dial-rotation combination on the safe (and giving the correct reason why). All required information is in the images (which could be printed) - download of detail images advised.

Answer

The final solution is:

(Rotate the selected images, until they end at the line.)

Upper Dial:

Lower Dial:

This is based on previous answers.

APrough found that

the tiles match into the plates on the main table.

and SirGrapefruit found that

the central plate is special and can be used to determine which star-collections on the picture belong to the solution.

The final combination is then simply

based on available constellation options for each dial as well as the end position orientation when they are all aligned to form 7 symbols in a vertical row.