Starblinker allows to easily search for new stars in your astronomical photos. The new star could be:
1) An already known or a new unknown asteroid;
2) An already known or a new unknown comet;
3) An already known or a new unknown galactic nova;
4) If it is superimposed to an external galaxy, an already known or a new unknown supernova;
Before reporting a potential new discovery, please make all necessary checks to be sure it is not an already known object or a defect in your image.
Stars! Nova is a clone of the classic 4X space strategy game Stars!. While nowhere near the functionality of Stars! quite a few features have been implemented so far. See the Nova web page for details.