The Panopticon/Rings locations

There has been a lot of confusion on many pages related to the latest episode, TV: The Rings of Akhaten, regarding the nature of the locations in the story and exactly what they are. People have been changing and 'correcting', and undoing. It's really on the brink of an edit war.

As this involved many pages, I'm posting this at The Panopticon, so that people notice it. Pretty much, this is what we have at present:

• Sung Sings of Akhet
  • possibly Sun Singers of Akhet
  • Either:
    1. A solar system (because the Doctor refers to them as "seven worlds all surrounding one sun" or something similar), or:
    2. A religious order (not really sure where this came from)

• Tiaanamat
  • An asteroid in Akhaten's orbit. This is where the markets and the Festival stadium are.

• Pyramid of the Rings of Akhaten
  • The Doctor calls the pyramid this at the beginning of the episode. Is this a proper title, and therefore capitalised, or is it just a description of the pyramid? Anyhow, this appears to be where the Mummy is located. It's specifically on a different asteroid from Tiaanamat. We don't currently have a page on the Pyramid.

• Akhaten
  • The most difficult of all of them, at the moment, we have that Akhaten is both the planet and the Old God, even though the Doctor calls the Old God a "parasite sun" at the end of the episode. It seems to me that it's actually a sentient sun with rings (hardly inconceivable in the DWU). It's also possible that Akhaten and the Old God are entirely separate entities, as they're never really linked.

So. Here, we're going to discuss all the locations, and use narrative proof from the episode to decide exactly what every location is. I hope a lot of people get to voice their opinions.