Scientists tell us that if the θ angle is taken as a sign, the "six-star alignment" below 5 degrees will happen 49 times, the "seven-star alignment" will happen three times, and the "eight-star alignment" will not or will not happen. If the θ angle is expanded to 10 degree, there are 709 "six-star renju", 52 "seven-star renju" and 3 "eight-star renju". If "nine planets alignment" occurs, the θ angle must be expanded to 15 degrees. Even so, the "nine-star renju" only happened once in 6000 years, that is, the "nine-star renju" that happened in February of110.