Mike, the repost is mostly my fault. I suggested in the other thread that Jim might get more help if he used a more informative subject. Apologies for causing any distress.
Jim, it might be useful to search for sample code that makes the BlinkM flicker like a candle (this seems to be a common goal). Depending on how realistic you need your star simulation to be, simply changing someone's candle simulation code from using warm, yellow colors to a cool, blue-ish white ones might suffice.
You'll probably want to find a white that looks acceptable, then vary its brightness a bit at random intervals.