Let’s orient nonagon along north-south axis. In this position around Mecca multiply to 20 degrees are located four historical objects with errors less than a degree.
But, if we turn nonagon on 0.8 degree counter-clockwise we will get a very exact coincidence of directions to GP, Solomon temple and island of Vera to which is joined the Lhasa azimuth perpendicular to the direction of Solomon temple.
Now turn nonagon on 7.5 degrees counter-clockwise and divide the circumference by 5 degrees. In this position we see the combination of the 10 azimuths which are located around Mecca multiply to 5 degrees.
It is easily to identify errors by yourself as far as the exact value of azimuth must end either 2.5 degree or 7.5 degree.
Then turn nonagon on 4.5 degrees clockwise. In this position we get a very interesting combination of azimuths of GP, Nazca lines and Lalibela.
The image shows that the direction to GP is diagonal of the square in which is inscribed nonagon, direction to Lalibela is away from it on 45 degrees. This we already know from octagon.
It is interesting that in this case with these azimuths interacts azimuth of Nazca lines, which is separated from the azimuth of Lalibela on 80 degrees with the error of -0.51 degrees.
Having turned nonagon on 6.5 degrees clockwise we find that the azimuths of Baalbek, Angkor and Kailash are also subordinated to 20-degree division.
At this turn we get the exact azimuth of Baalbek, from which on 80 degrees is away azimuth of Kailas and on 100 degrees azimuth of Angkor with an error of 0.5.