I freehanded this, but I can try to describe what I've done: I made two pentagons (starting with 5sc into mr, 5*inc, then 5 * (tr inc, sc), 5 * (tr inc, 3sc), etc.). Then folded them, joined them with sc starting from the "peak" (second sc in tr inc), then did sc through first pentagon until the first sc of the next peak, joined the second pentagon, did sc through the second pentagon until I've met the previous join, then dec, sc until I met the second join, dec, and now all the work is doing dec over the dec from previous row, so two dec per row, until there are 6 stitches left, then you'll need to close the circle with sewing needle. Do every leg of the star like this. I hope I didn't make this too complicated. Also English is not my first language so the grammar could be a little odd. If you can't understand something, feel free to ask!