A structured zodiac knowledge system
What would you like to understand?
Learn the zodiac in a clear order, explore your sign, understand a birth chart, or verify the astronomy and historical context behind common claims.
Choose your journey
Start with your goal
I’m new to astrology
Follow a structured sequence through systems, elements, modalities, planets, signs and birth charts.
I know my sign
Explore dates, element, modality, ruler, mythology, constellation context and chart interpretation.
I want to understand my chart
Learn planets, signs, houses, aspects, the Big Three and why birth time matters.
I want history and astronomy
Separate astronomical facts, calendar systems, historical sources and astrological interpretation.
Quick reference tool
What is my zodiac sign?
Enter a birth date for the standard tropical zodiac range. The calculation runs in your browser and is not stored.
Core learning
Learn the basics first
Elements describe the symbolic family. Modalities describe the operating style. Together they create the structural identity of each sign.
Explore your sign
The twelve zodiac signs
Each profile connects dates, element, modality, ruler, opposite sign and constellation context.
Aries
March 21–April 19
Taurus
April 20–May 20
Gemini
May 21–June 20
Cancer
June 21–July 22
Leo
July 23–August 22
Virgo
August 23–September 22
Libra
September 23–October 22
Scorpio
October 23–November 21
Sagittarius
November 22–December 21
Capricorn
December 22–January 19
Aquarius
January 20–February 18
Pisces
February 19–March 20
Truthful context
Astrology and astronomy answer different questions.
Astronomy measures celestial objects and physical processes. Astrology is a cultural and interpretive tradition. Zodiac Calendar labels the difference throughout the site.
Understand signs, constellations and the ecliptic →