The only explanation for stars I have come from Genesis.
Don't you find that explanation rather startlingly useless here in the age of telescopes? We've been chemically analyzing stars for about 150 years now, and finding planets around them at the rate of two or three a month. You need a couple dozen stars for "signs and seasons," and we've now cataloged several million of 'em, only 6000 or so of which were even visible before 1610 when Galileo put a 'scope on the sky.
Do we need all hundred billion of the stars just in our own galaxy for "days and years?"