What constellation is it now? Return to the ecliptic? Stellar ecliptic? Or the ecliptic of the satellite?

Astronomically speaking, there is only "ecliptic", and these three terms have opened my eyes, hehe.

Baidu searched these three concepts, but did not find the concept of "ecliptic satellite". Even if there is, it is not universal, so I won't go into it. Related information has been found for the first two concepts, as follows:

"About the first century BC, Greek astrologers and astronomers decided to keep the position of the sun in vernal equinox on March 2 1 day every year as the starting point of Aries on the ecliptic (at this time, the position of vernal equinox and the sun is close to the position of Pisces on the ecliptic), and kept the Babylonian way. From this point on, the ecliptic was divided into twelve equal parts, keeping the original name. Zodiac killer.

However, Indian astrologers use different concepts. They insist on taking the position of Aries star in the sky as the starting point of the ecliptic. This calculation method of ecliptic is called "stellar ecliptic". The concept of these two different ecliptic systems is the so-called "ecliptic divergence" (ecliptic? Divergent). "

It may be a bit abstract for the landlord, but it is not for me. To put it bluntly, the ecliptic is still the ecliptic (the trajectory of the sun running on the celestial sphere). The difference is only the vernal equinox (starting point) The former takes vernal equinox (near the dividing line between Aries and Pisces) as the starting point, while the latter takes vernal equinox (near a star in Aries) as the starting point. According to these two different standards, the longitude of celestial bodies will differ by a constant.

Based on this, I can guess that the position of the vernal equinox is the starting point of the satellite ecliptic. There is no relevant evidence to support it, but it is possible in theory.

Whatever the concept of the ecliptic is. I can already answer the landlord's questions. The purpose of astrology is to return to the ecliptic. Take the dividing line between Aries Palace and Pisces Palace as the vernal equinox of the year. These three concepts are nothing more than playing some trivial tricks to make people sound professional.