Is the star on the top of your tree a red dwarf? White dwarf? Is it a giant? Bigger than the sun?
Does it have planetary bodies circling it? A lot? Asteroid belt? Is there anything in the habitable zone? Is it inhabited? Natives? Or alien colonialization?
How far is it from earth? How many light years away is it?
How old is it? Just out of the nebula? About to become a black hole?
Just something to think about as you decorate for Christmas.