Constellation

This hat is a logical addition to my new star collection. I tried to switch to designing something different, but I couldn't. A skein of bright self-striping yarn turns star knitting into an addiction!
Just like in Starburst or Startrek, all elements in this pattern are worked in-the-round, from the edges to the middle, and therefore, no seaming or sewing is ever required.
You need to be familiar with decreases/increases and short row technique to knit this pattern.
Gauge and size: With fingering-weight yarn and 2.5mm needles, one star measures 10-11cm across. With 5 stars around, this hat measures approx. 55cm around and comfortably fits average adult head.
The height of the hat is 24-25cm. You can make it longer by knitting a longer ribbing.
You will need: 
- 50g (200m) of each selfstriping and solid fingering-weight yarn;
- 2.5mm circular needles with metal tips;
- tapestry needle to weave in ends;
- optional: one pompom. You can make one, or buy a pompom from some craft supplies store. 
- optional: washable fabric glue to secure the knots.