Call it what you will, but as you state at the begining of that chapter maps and Celestial star charts are a key theme of the book, and you use a Dutch 18th centruy map to supposedly demonstrate Greek awareness that the Eaths axis was understood as linked to the North Celestial Pole, which is a main theme of your book.
It has not been cited as evidence for Greek abilities in relation to the constellation Hercules.
Yes it has, see page 484 of your own work with regards to supposed understandings of precession.
I see it in the Atlantis tale as a series of circles that complied almost exactly with the rotation of the stars around Tau Hercules. This was not difficult to achieve.
All that was needed was a picture of the constellation and the rest could easily be developed via proportion and applied dimension. Plato was more than capable of drawing a picture of the constellation
But all you managed to demonstrate is that the Dutch would have been capable of this with some accuracy in the 18th century, we know the Greeks could draw nice pictures of their constellations, but they never produced celestial maps of the Northern skies and you have failed to demonstrate how your proposition of accurately mapped circles around celestial North could have been realised.
The viwpoint of your diagram of Hercules around celestial North as seen from directly above or below is entirely outside of the capabilites of the Greeks to have achieved, though would not have been if they had possesed the capabilites of the 18th century Dutch as you had believed...so like i said a serious problem there.