Having got fed up, late on last night, with trying to solve the mystery of the obelisks/monoliths I decided to have a bit of a survey of the site as a whole. And here are my findings and resultant musings.
http://imgur.com/a/jGyC9
Map
Viewing down the lines of obelisks along the two red lines I saw the same patch of sky (at the time of viewing I could see a line of 3 stars, something similar to Orion's belt, above the horizon).
Viewing down the orange line I saw the same patch of sky as viewing down the brown line from the large circle, i.e. they are parallel, (at the time of viewing I saw a small triangle of stars at about the same height as the previous 3).
Viewing down the purple line I saw, what I think is the Small Magellanic Cloud at roughly the same height above the horizon as the other observations.
Viewing down the green line, I saw nothing special, until I raised my perspective slightly and I saw Barnard"s Loop bisected by the horizon.
Viewing from the pyramid directly north, Barnard's Loop was also seen setting over the large circle.
Viewing down the blue line I saw the galactic plane intercepting the horizon.
Viewing up the brown line I noticed that I had just missed the setting of the Y class dwarf that this moon orbits, directly in line. Only a faint purple hue and the rings were visible.
Viewing along the top yellow line from the pyramid over the adjacent relic tower points to EXACTLY the same point in the sky as viewing along the bottom yellow line from the center of the small circle over the nearby relic tower, I even used the gap between the two obelisks as a site line.
Observations taken approx. 23:30 - 24:00 GMT.
Unfortunately I omitted to take any screenshots as I didn't realise the significance at the time, it being what I thought was just a random time to make the observations. I was just looking for geometric similarities.
This morning (approx. 09:45GMT), much to my regret, I noticed the sun was up and I had missed a sunrise. However I decided to observe the sun from the Pyramid within the compound (see screenshot).
http://imgur.com/anyQ4JF
What struck me was that as it rose it must have appeared to roll up the slope. I therefore added the pink line to denote the view of sunrise from the pyramid, this seems to correlate with other images of sunrise posted in this thread today.
Now for the musings, in most part, based on a pictorial view of the site.
Could the large multi ringed circular mound represent 2 astronomical bodies at the same time?
1. The ringed Y class dwarf in the center with the ridge coming from it, from which we observe its setting.
2. Barnards"s Loop round the outside, with the large gap to the S.W. As I recall it did somewhat match in orientation.
Could the smaller circular mound represent the systems primary star?
Could the boundary wall represent the horizon?
If yes to all the above, I believe it tells us the exact time when to make our observations - When the "Sun" rises and the Y class dwarf and Barnard's loop set all at the same time. This nearly occurred today with the sun rising only a short time after both of the others set.
I believe those observations should be taken from the pyramid viewing across the relic tower adjacent to the pyramid and the relic tower ENE of the pyramid outside the walls.
The big question is have we missed the event or is it yet to come?