The 12 blocks can be bought individually or as a bundle for an entire quilt. From Fancy Tiger:
The 12 Astrological Constellation Block captures the celestial magic of the stars in modern 20” quilt blocks. Organized, step by step instructions keep construction simple and methodical, making this a fun patchwork project. The finished blocks are the perfect size to make a 20” throw pillow. For a quilt, placing the block within a solid background creates the look of a constellation suspended in the night sky. A single constellation quilt is a beautiful gift for baby, birthday or graduation. Combine two constellations, incorporating both into a solid background, for a modern wedding or anniversary quilt.
Available as a PDF or Printed Pattern - see the Fancy Tiger Crafts quilting patterns section of their shop for all the individual block patterns.