What is a rising constellation? What is the zenith constellation?

It is the constellation of the eastern horizon when an individual is born, and its change depends on the time and place of birth. ?

Its concept originated in the Middle Ages, because a new element was born at that time, that is, the division of the heavenly palace, that is, the geographical division of the heavenly palace at birth according to the time and place of birth.

Zenith constellation:

At the zenith, the upper meridian, there are two straight lines running through the astrolabe, horizontally across the horizon and from top to bottom across the meridian. The eastern and western ends of the horizon (to the right and west of Zuo Dong), that is, the heads of the first and seventh houses are called Ascending Point (asc) and Descending Point (des) respectively, and the upper and lower ends of the meridian, that is, the heads of the tenth and fourth houses are called Zenith (mc) and Zenith (ic) respectively.

The origin of extended data constellation;

In 270 BC, the Greek poet Aratus wrote Things, in which 47 constellations were mentioned. According to the star regions recorded in Celestial Bodies, due to precession, the Antarctic in the period described in the book is not consistent with the current Antarctic, so it can be inferred that the starry sky recorded in the book is before 2000 BC; At the same time, the blank area of the starry sky record indicates that the observer should be near 35 to 36 north latitude.

So some people think that the practice of dividing the starry sky into constellations originated from Babylon and Sumer in Mesopotamia, and the constellations of Greece and Egypt may have been introduced from this area.

Baidu encyclopedia-zenith constellation

Baidu encyclopedia-rising constellation