Cause of ascian calamity and rejoining elemental

[MrThinker]

I'll have to double-check myself, but I'm pretty sure was the Seventh that was rejoined in the Ice Calamity and the Eighth for the Astral Aspected/Bahamut one.

Remember that going by the assumption that the shards are indeed in order going clockwise from the Source (which indeed seems to be the case since we know the First and 13th are clockwise and anticlockwise to either side of it), the 7th would be directly opposite of the Source itself.

[dynus]

In most cases, yes, but the Source was always represented by a larger sphere than the rest, which offsets it a tad. I drew a diagram and marked them off as I watched the cut scene after Emet showed us which one the 13th was. As I said, I'll have to double-check when I log on and rewatch the scenes.