The night sky is filled with stars. You can tell a lot about a star by its color. You can tell the temperature of the star. Red stars are the coolest. Yellow stars are hotter than red stars. White stars are hotter than red and yellow.
Use your mouse to click on groups of two or more stars of the same color. The larger the group, the more points you will get.
To play, click the Play button. To start over, click on the Clear Sky button.