Differences such as different definitions and different meanings of good and bad luck.
1. Different definitions: sibling refers to two stars in one constellation, very close to each other, almost next to each other; while gonzhao refers to two stars in two constellations, The distance is far away, but the angle is very close, almost on the same line.
2. Good and bad have different meanings: in Ziwei Dou Shu, Zhao is considered an auspicious sign, indicating good luck and the arrival of noble people; while Gong Zhao is considered a bad omen, It heralds the coming of disaster and misfortune.