From Halopedia, the Halo wiki
The Greater Tiger was a constellation in the Milky Way galaxy. The constellation was named by the prehistoric human civilization, due to its resemblance to a tiger. Three bright stars that were red and intensely blue were arranged in a looping formation, with surrounded by four, dimmer, greenish stars and a group of stars that were barely visible to the naked eye. Following the Battle of Charum Hakkor, the remaining human forces retreated to a human-colonized planetary system in the constellation with a fleet of tuned platforms and prime cruisers. When defeat against the Forerunners appeared inevitable, the human fleet razed the system's planets—including the wolf-faced planet—denying the Forerunners their resources.
List of appearances