Astronomical fortune telling _ astronomical calculation

Which celestial body moves one constellation every year on the ecliptic?

Hello, landlord. If you look at the sky where planets fall, it seems that no planet just moves one constellation every year.

Jupiter was also called the "year-old star" in ancient China, because it was close to period of revolution in 12. That doesn't mean it moves one constellation every year. I'm here to refute the views upstairs first.

①: There are not only 12 constellations on the ecliptic, but also 13 constellations (including Ophiuchus). If we judge how many constellations we move each year only by the celestial period of revolution, we will make an intellectual mistake-the zodiac 12 constellation in astrology is different from the zodiac 13 constellation in astronomy, so we can't use 12 instead of 13. So if the period of revolution of Jupiter approaches 13, it is possible to move one constellation a year.

②: Every "palace" on the ecliptic (such as Aries Palace and Taurus Palace) spans 30, and the sky spanned by each constellation is big or small: Scorpio is only about 7, so the sun is basically only in Scorpio for 7 days every year. According to the drawing method in astrology, 65438+1October 24th-165438+1October 22nd is the starting and ending time of Scorpio, which is much longer than the seven days in astronomy. During the period of 65438+1October 24th-165438+1October 22nd, the real constellation of the sun setting should be Virgo first and then Libra, not Scorpio in astrology. The astrological chart is the distribution of stars 3000 years ago, and the precession of 3000 years makes many constellations deviate from the zodiac (for example, Aries, although the Aries Palace has been preserved, Aries is no longer the real zodiac, and its position has been replaced by Pisces and Pisces. Aries today's constellations are mainly Pisces and Pisces.

Having said that, I actually want to make it clear that planets don't stay in every constellation for the same time. But it stays in every palace for the same time.

③: Finally, speak with facts. Take today's 65438+February 3rd as an example. Last year, Jupiter fell into Gemini. Fall into Leo today (if the landlord has the patience to wait until Leo rises in the early morning, Jupiter will rise before Leo in the Leo sky area). If you really move one constellation every year, Jupiter should fall into Cancer this year.

The other planets in the solar system, Venus and Mercury, can be considered together because they are close to the sun. They move twelve or thirteen constellations every year, and Venus can sometimes cross the 15 constellation (that is, cross the 13 constellation once and then recycle it once); Mars and Saturn, which are still visible to the naked eye, fell into Virgo last year today and Sagittarius (close to Capricorn) today, moving more than one constellation, with a large span; The only thing that hasn't moved is Saturn, which has been in Libra since last winter until today. It will fall into Ophiuchus next spring. The relative position between other distant stars and constellations will not change and basically will not move (it will take millions of years to see obvious changes), so it will not be considered. Uranus and Neptune are very far from the sun, so it is difficult to see obvious motion. They won't change constellations for about ten years.

Therefore, according to the landlord's question, no star moves a constellation every year; In other words, it will become a star that moves one house every year, so maybe Saturn is more suitable.