It is my opinion that the design was from a pattern and carries a copyright. It is not the individual stars that would be the issue but how those stars are grouped together in a final piece. Questions here are: where did you see the quilt. Did you make a picture of it. What do you intend to do with the finihed produce you have redrawn. There was a recent case where a quilter who makes quilts and sells on the internet would take pictures seen in shows and then go home and duplicate. She thought making a few changes would override the copyright but the quilts were still very distinctive and recognizable from one designer.
BIG trouble with the designer as well as book publisher etc.
So the question again is what are you going to do with the finished product. If wrapping your baby in it or exhibiting for competition, selling etc etc etc. So depending on these situations might be safe to try and find the origin of the quilt. It appears to be "original deign" to me.