Tom wrote:

Wher did the sun even come from? The genesis wave made the planet out of the nebula gases and the Reliant, but did it make the sun too?
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It's the Regula star, same appearance to the one illuminating Regula 1 earlier in TWoK. The Mutara Nebula and Regula 1 seem to occupy roughly the same part of the goldilocks zone of the system, just a few minutes at full impulse apart (any closer and it may well have ended up the new planets moon).
There was a very lengthy discussion on this in sci-tech recently.