Astrology — understand your birth chart

Q: Do I need my exact birth time?

For the ascendant and the houses, yes. Without a time, Birth Codex still calculates the Sun, the Moon and the planets and delivers a meaningful chart.

Astrology is the art of reading the sky at the moment of your birth. From the positions of the Sun, the Moon and the planets emerges your very own birth chart — a map of your nature, your strengths and your themes. Birth Codex calculates it precisely from your birth date, place and time, and embeds it within 23 cosmic systems.

Start for free: Human Design, Numerology, Astrology & Power Places are yours right away. Unlock all 23 cosmic systems in the full Codex.

The building blocks of your horoscope

A birth chart is more than your sun sign. It's the interplay of many factors — each one describing a different part of you:

Sun signYour core — how you shine and what drives you deep inside.Moon signYour emotional world — how you feel and what gives you safety.AscendantYour outward mask — the first impression you make.Venus signHow you love, savour and connect with others.Birth chartYour complete chart with all 10 planets and 12 houses.Moon phaseThe lunar rhythm at your birth — your inner pulse.

The 12 zodiac signs

The zodiac divides the sky into twelve signs, each with its own element and character. Discover the meaning of your sun sign — and all the others:

♈ Aries — Fire, March 21 – April 19 ♉ Taurus — Earth, April 20 – May 20 ♊ Gemini — Air, May 21 – June 20 ♋ Cancer — Water, June 21 – July 22 ♌ Leo — Fire, July 23 – August 22 ♍ Virgo — Earth, August 23 – September 22 ♎ Libra — Air, September 23 – October 22 ♏ Scorpio — Water, October 23 – November 21 ♐ Sagittarius — Fire, November 22 – December 21 ♑ Capricorn — Earth, December 22 – January 19 ♒ Aquarius — Air, January 20 – February 18 ♓ Pisces — Water, February 19 – March 20

Western astrology and its relatives

The Western (tropical) astrology shown here is just one of many traditions. India's Vedic astrology works with the sidereal zodiac and the Nakshatras, while the Chinese zodiac uses a 12-year cycle of animal and element.

Each system illuminates a different angle of your personality. Birth Codex brings them together, so you see not one fragment but the whole picture.

How astrology is calculated

Behind every horoscope lies exact astronomy. From the date, time and place of your birth, the positions of all the celestial bodies can be determined to the arc-second — Birth Codex uses the Swiss Ephemeris for this, based on NASA JPL data.

This is why the time of birth matters so much: the ascendant and the houses move on roughly every four minutes. The more precise your time, the more accurate your chart. If you don't know it, Birth Codex still delivers a complete picture from the Sun, the Moon and the planets.

Frequently asked questions

What's the difference between a sun sign and a horoscope?✦

Your sun sign is only the position of the Sun. Your birth chart additionally includes the Moon, the ascendant, all the planets, the 12 houses and their aspects — that is, the complete picture of your personality.

Do I need my exact birth time?✦

For the ascendant and the houses, yes — they move on every four minutes. Without a time, Birth Codex still calculates the Sun, the Moon and the planets and delivers a meaningful chart.

Is astrology free at Birth Codex?✦

Yes, your birth chart with the Sun, Moon, ascendant and planets is part of the free start — together with Human Design, numerology and your power places. The full depth of all 23 systems is yours to unlock optionally.