Mitered Corners on the Asteroid

I have finished the Asteroid quilt top for Drew, and now I am working on those final borders.  Because I wanted those white stars on the edge to be "finished," (my brain needs to see a whole star here!) I have some adjustments in the border to do!  I had to make a paper-pieced pattern with the star points "overlapping" the borders.  I suppose I could have just appliqued a triangle over the top of the border and called it a day, but I think it looks more "accomplished" this way.  So the border will be pieced in three sections, and the ends will need to be mitered because of the double border.  Here's a pic of how it's going to far...

The fabric I am using for the outer border is a burgundy/red batik with black/gray swirls that look like tire treads, and match really nicely at the seam lines.  The seam lines aren't that noticeable.  It will also help bring more burgundy into the quilt, which was looking a little too black/gray/white than I wanted.   Another interesting thing about this batik is that when you iron it, it smells wonderful!  Like sandalwood or some spicy woodsy smell.  Someone must've stored it in a wooden container, like a cedar chest, although it doesn't smell like cedar.  I think I bought this piece of fabric last summer on a shop hop. Since this quilt is for a boy, I'm glad it's not a "girly" smell, like roses or perfume!

I think this quilt is shaping up nicely.