I have uploaded
to the LexiLine files on Ancient Ireland.
The Ballybane rock drawing in County Cork gave me a lot of trouble because I originally assigned its large cupmarks to the stars of Crux, which it could well represent.
However, as the entire system in Ireland became clearer, it then turned out that Ballybane could only be the False Cross at border of the constellations Vela and Carina.
Note that the reason for this is that southwest Ireland corresponds in shape to the break in the Milky Way between Vela and Carina and also approximates this break in shape.
Additionally, it appears that the center of the False Cross could have been used to triangulate the South Ecliptic Pole and South Celestial Pole.