Seven kills, Sirius and Pojun, what do they mean respectively? Is it a constellation?

Seven kills, seven malefic. Usually refers to the seven kinds of homicide crimes stipulated in ancient Chinese laws, namely: homicide, robbery, homicide, fighting, manslaughter, drama and manslaughter.

Sirius. Sirius. The brightest star in the winter night sky has a visual magnitude of-1.45, etc. It is a binary star in the constellation Canis. Liangzi in the binary star is a blue-white star that is 23 times brighter than the sun, slightly larger than the sun, with a diameter of 1.7 times and a surface temperature of 10000℃, which is twice that of the sun.

Pojun is the seventh star of the Big Dipper. (The other is the first star, others are: Wu Qu, Lian Zhen, Wen Qu, Lucun, Giant Gate, Hungry Wolf), which was originally an astrological term, referring to shamanism (shamanism here refers to shamanism in primitive society, not shamanism in Qing Dynasty). Because Pojun is one of the stars in Pojun's divination, Pojun is also the abbreviation of Pojun's divination. In ancient times, people thought that a person's luck was like a watch. When the pointer went to different positions, people's fortune would have different performances. Pojun reflects the influence of a person's printed patterns in different periods and situations on the future.