Tiangou chased the rabbit and hit Chang 'e, but if you want to talk, you won't talk about peace. Guess a constellation.

According to the elements and situations mentioned in this sentence, we can infer that this is a riddle about China tradition. The constellations involved may be:

-Tiangou: It stands for dog and is one of the twelve zodiac animals in China.

-Rabbit: It stands for rabbit, and it is also one of the twelve animals in China.

-Chang 'e: the goddess of the moon in ancient China mythology.

Combining these factors, we can infer that the answer is dog or rabbit, because they are both important animals related to China's traditional culture and mythology. But because this riddle is abstract, there may be other possible explanations and answers, and the specific situation needs to be judged according to more context and information.