How are the Sun Constellation, Venus Constellation and Rising Constellation divided?

The astrological chart used in astrology is actually a picture obtained by projecting the three-dimensional positions of the sun, moon, water, fire, wood, earth and sea in the sky onto a two-dimensional plane at the moment when the owner of the astrological chart was born. The reference system and coordinate axis are artificially set, but this coordinate axis is not the same as that of algebra in junior high school. It is circular, with a circle of * * * 360 degrees, with the equal length of day and night as 0, divided into 12 points, and the first 30 degrees is Aries, which is the division of constellations. There is only one constellation on the astrolabe, depending on the constellation of any star. For example, if a person's sun falls at 35 degrees from the starting point Aries on this 360-circle coordinate system, then his sun falls at 5 degrees in Taurus, and so does Venus. Therefore, when drawing an astrolabe, when the stars are looking for a house and drawing an analysis, they draw the relationship between the stars and the corresponding house phases. Of course, there is another circle, the palace. According to different palace division systems, this 360-degree palace is artificially built.

The intersection of the horizon at birth and the zodiac is defined on the astrolabe. The intersection in the east is the rising point, and the nature in the west is the falling point. The rising constellation is the location of the rising point.

How the three-dimensional universe is transformed into a planar astrolabe can be understood by buying this ephemeris. ...