How To Calculate Your Zodiac Sign

Early astronomers witnessed the Sun passing through the Zodiac signs in a year’s time, spending roughly a month in each. As a result, they determined that each constellation covers 30 degrees of the ecliptic.

However, due to a phenomenon known as precession, the positions of the constellations we see now have changed.

The zero point of the Zodiac used to designate the beginning day of spring in the Northern Hemisphere. The vernal equinox happens when the ecliptic and celestial equator collide, according to astronomers.

The zero point existed in Aries around 600 BCE, and it was known as the “first point of Aries.” (See Figure 1). The constellation Aries covered the first 30 degrees of the ecliptic; Taurus covered the next 30 degrees; Gemini covered the next 60 degrees; and so on for all twelve constellations of the Zodiac.

The Earth wobbles around its axis in a 25,800-year cycle, which ancient astrologers were unaware of. The gravitational attraction of the Moon on Earth’s equatorial bulge causes this wobble, known as precession.

This wobble has led the junction point between the celestial equator and the ecliptic to migrate west along the ecliptic by 36 degrees, or nearly one-tenth of the way around, over the past two and a half millennia. This indicates that, in relation to the stars beyond, the signs have moved one-tenthor almost a month around the sky to the west.

For example, persons born between March 21 and April 19 are considered Aries. During much of that time, the Sun was no longer in the constellation of Aries. The Sun is actually in the constellation of Pisces from March 11 to April 18! (See Illustration 2) See also Figure 3, which depicts the equinox precession from 600 BCE to 2600 CE.

The dates when the Sun is truly within the astronomical constellations of the Zodiac, as defined by contemporary constellation borders and corrected for precession, are listed in the table below (these dates can vary a day from year to year).

When precession is taken into consideration, your zodiac sign will most likely be different. And if you were born between November 29 and December 17, your zodiac sign is one you’ve never heard of before: Ophiuchus! After Scorpius, the eliptic crosses across the constellation of Ophiuchus.

Visit the Birthday Sky program to view what the sky looked like on your birthday and to learn more about your “true zodiac sign.”

Constellations Image Gallery

What is the name of the zodiac sign?

The zodiac is a belt-shaped section of the sky that stretches approximately 8 degrees north or south of the ecliptic, the apparent path of the Sun across the celestial sphere over the course of the year (as measured in celestial latitude). The Moon’s and visible planets’ courses are all within the zodiac belt.

The zodiac is divided into twelve signs in Western astrology, and formerly astronomy: Aries, Taurus, Gemini, Cancer, Leo, Virgo, Libra, Scorpio, Sagittarius, Capricorn, Aquarius, and Pisces. Each sign occupies 30 degrees of celestial longitude and roughly corresponds to the star constellations: Aries, Taurus, Gemini, Cancer, Leo, Virgo, Libra, Scorpio, Sagittarius, Capricorn

These astrological signs make up a celestial coordinate system, or more specifically, an ecliptic coordinate system, in which the ecliptic serves as the origin of latitude and the vernal equinox serves as the origin of longitude.

Which zodiac sign has the most intelligence?

Aquarius is the zodiac sign with the highest intelligence. Uranus, the planet of invention, creativity, and expanded consciousness, rules them. As a result, this air sign does more than just process information and spit it back out: they evaluate, comprehend, and expand on it. “They’re creative, unconventional, and frequently ahead of their time,” Kovach adds. “They have a good understanding of how upcoming trends work and may have a picture of the future that others don’t.”

What is your ascension?

The majority of us are aware of our own and our friends’ star signs, also known as sun signs. Isn’t it how we all make passive aggressive judgments while bigging ourselves up on Instagram with zodiac memes? Our moon signs are also known to us. But did you know you have a RISING SIGN that’s just as important?

The planetary influence that was rising, i.e. on the Eastern horizon, when you were born is your rising sign. It usually reflects how others perceive you in real life and can predict your gut reactions to situations. It is, however, yet another potential personality flaw to consider.

Because of its connection to the rising sun, your rising sign is also known as your ascendant, and many people associate it with your social nature, it’s possible that if someone is guessing your sign, they will get your rising sign before your sun sign! It’s how other people perceive you, which is something you’ll never have. This makes it a fascinating aspect of your birth chart to investigate: discovering who you are in the eyes of others.

Aries, who should you marry?

Libra (opposites attract), Sagittarius, and Leo are the most compatible signs for Aries in friendship and romantic relationships (fellow fire signs will speak their same passionate language).