I actually pieced this top several years back. It is a pattern from Hopskotch Quilting. She has some really great patterns on her site. I first saw her stuff in a quilting magazine, and have been hooked ever since. My Starflowers quilt is one of her designs.
I didn't use her paper piecing method, because that was back when I was afraid of it. You can see that it makes for some not so flat blocks. I recommend the paper piecing. I'm sure it would yield more accurate (and flatter) piecing. You can buy her pattern here. Scroll down to where it says Seth's Stargazing. Hers is set with 5 blocks by 5 blocks. Mine is 6 by 8. My blocks may actually be smaller than hers. I'm not sure. Here's where I have to confess that I did not buy the pattern. I just looked at it and made my own version of it.