When you "measure" or make an observation, you are attaching (even temporarily)/bouncing quantities of base size quantum plank building blocks, onto other quantities of base level building blocks, and then measuring, and subtracting the difference of the total of the two together measured, from the quantity that you attached/bounced off the other quantity individually measured.
Every time.
Object + observation object, subtract the difference of the measurement of the observation object from the measurement of the two together.

"Spin" would require a physical, actual handhold point, something to actually, physically maneuver the object built from base building blocks around with.

Like a hole, or a mountain, a crater, or a pile of loose dirt, something, anything to gain leverage physically.
The object is built from the quantum level up symmetrical, it has an equal number of blocks in every direction, so any attempt to "spin" the object, or to measure it, or observe it, would require altering it by digging out an actual physical point to use leverage, up adding a mountain to it, to gain torque, force, basically add blocks to the smooth symmetrical stack of blocks.

So spin is not measurable on a symmetrical object, as it cannot be "spun". It does not have enough complexity of size building up from the plank level yet to have enough parts building gimbals for that level of movement called spin.
Now's not the time for spin.
That comes later Doctor.

That sun has more axis of movement that our planet, than our moon, but the galaxy has more than our star, and a local group has more than a galaxy.
All building larger gimbals of movement, for more complex parts, from the base plank quantum foundational level.
But it should be quantifiable by determining the number of quantum plank building blocks in it's build, and thusly its gimbal layer.