The divination significance of the ecliptic

In Babylonian times, the vernal equinox of 2 1 on March every year happened to be the time when the sun entered Aries. The stars behind the zodiac are not fixed, but move at a very slow speed. We call this sport precession. Today, because of precession, the equinox on the ecliptic has moved to Pisces.

Greek astrologers have long discovered this problem, but for ancient astrologers, the starting point of vernal equinox's Aries is an important coordinate to define the position of the planet. If it keeps moving, there will be considerable trouble in determining the position of the planet. So Greek and Roman astrologers and astronomers decided to keep March 2 1 day as the vernal equinox, and vernal equinox's sun position was the starting point of Aries on the ecliptic. And this ecliptic system is called "tropical ecliptic". But Indian astrologers insist on taking Aries' star position in the sky as the starting point of the ecliptic, and this calculation method of the ecliptic is called "lateral ecliptic".

Astronomy, on the other hand, has a more accurate way to distinguish the ecliptic, which is why it led to the later 13 constellation dispute. You often ask others what constellation it is. In astrology, the correct statement is which constellation the sun was in when you were born. In Europe and America, most astrologers you come into contact with use the ecliptic, but if you go to an Indian astrologer, he may use the stellar ecliptic. Ophiuchus has been listed as a regional coordinate of the ecliptic by "astronomers", and the time for the sun to pass through each constellation is not as fixed as that for returning to the ecliptic. The ecliptic star used in Indian astrology is indeed closer to the astronomical position.

More importantly, astrologers must know that modern astrologers also have more elaborate methods to calculate the birth date constellation, so that a person born on March 2 1 day may not be Aries, but he may still be Pisces because he is one minute away. And in the eyes of astrologers, it absolutely doesn't exist because you were born on the border date between Pisces and Aries, and you are half goat and half Pisces. This specious statement of astrologers has caused many astrologers a headache.

The signs of the zodiac on the astrolabe are as follows: China signs Aries? Taurus? Gemini? Cancer? Leo? Virgo (Virgo)? Libra? Scorpio? Sagittarius (commonly known as Sagittarius)? Capricorn? Aquarius? Pisces? The angle between the ecliptic and the equator is 23 degrees and 26 minutes (the angle between the ecliptic and the equator); Because the earth's revolution is perturbed by the moon and other planets, the orbit of the earth's revolution is not a strict plane, that is, there are irregular continuous changes in space, including many short-term changes and a slow long-term movement. Yao, a short-period motion, can be averagely eliminated in a certain time, and the stack orbital plane except for periodic motion is called instantaneous Planck orbital plane. The strict definition of the ecliptic is: the instantaneous average orbital plane of the earth and the moon around the center of mass of the sun? The great circle where the celestial spheres intersect. The ecliptic is the base circle of the ecliptic system on the celestial sphere.

Because we can only see the sun during the day, but we can't see the stars at this time. So theoretically, we just can't see which constellation the sun goes to. In other words, when we celebrate our birthday, we should not see our own constellations. However, due to the precession mentioned above, the constellation of the sun today, that is, the invisible constellation, is not the constellation defined by the ancients when dividing the ecliptic. For example, the vernal equinox of March 2 1 happened to be the time when the sun blocked Aries in Babylonian times, and people born on that day belonged to Aries. But in modern times, Pisces is blocked by the sun at the vernal equinox.