Ok, so from the top :)
Gameplay. I played a couple of rounds. The idea is solid- with some additional stuff (powerups, score streaks, something like that) I could see this as a nice "bus game". The rounds are short enough that you'd easily fit a couple in your daily commute :) What I didn't like was the rating system. The idea is good, but right now it doesn't forgive any mistakes. Two stars is the best I could do :)
Creativity. I guess I haven't played a puzzle game with this idea. Points for that :)
Graphics. The graphics were readable, but simple. I'd like a bit more feedback here. A couple of times I clicked a star and then a different one rotated. It would be cool if the "active" star would light up, or otherwise signal it was active.
Audio. Genuinely good! The music was nice, but it's the subtle sound effects on every click that really do the work here.
Theme. I guess I can see how it relates, but also I wouldn't thing "stargazing" if I didn't know it was the theme.
Over all. Solid submission for puzzle game fans. Could use a bit of polish.