On a further note to the commanders trying to triangulate lat / longitude co-ordinates on a sphere, also consider that since we are dealing with entities obsessed with threes who sent out three 'arks' then we could be looking for a triangle in space too. A pyramid if you count the point of origin. That would mean that there are two or even three star systems from the relic site the same distance ( the point of orgin, ie homeworld, might be different. ) from each other.
This might be confounded by the fact that amongst billions of stars, triangulation and even equal pyramid distances will be common we can simplify this by using type of stars, the numbers 1, 3, 6, 9 ( the ruin sites moon has a rotation of -6.9 )which is used in triangulation and perhapse other numerical similarities.
Last thing, when I mentioned in space do not forget that the ruin site's system is space too and there are some very interesting oddities with the orbits, rotation and composition of the bodies in this system.
Anyways, I am eager the check this all out but unfortunately I have just got up, the missus and I want a fried breakfast before heading off to the cinema to watch the last showing of Rogue One.
Tiggy out. o7