If I may hark back to my understanding of the great year, then the earth does in fact have a second sun within it's great orbit, perhaps when this other sun is taken into consideration which may only be every 24,000 years or so this is when our evolutionary path is boosted or retarded, this is what the great year alludes to by dark ages and golden ages I would have thought, I know you can read other paths into that understanding but the point I make, we appear to already have that second sun within the science that has been hinted at, even if not proven beyond doubt
food for thought