《宋史·志·卷三》
积卒十二颗星，在房宿西南面，五营军士的象征，主管卫士扫除不吉祥。
积卒十二星，在房西南，五营军士之象，主卫士扫除不祥。
The 12 Jizhou stars are located at the southwest of the Fang Inn, and are symbols of military men of the five camps, who are responsible for sweeping away bad luck for the guards.