Astrology Library
Free, plain-language guides to reading a birth chart: what every aspect means in the natal chart and in synastry, how personal transits feel, and what each planet means in every sign and house. Plus Mercury retrograde and eclipse dates and free chart calculators.
Aspects
What every major aspect between the planets, the Ascendant and the Midheaven means: in the birth chart, in the sky for everyone and in synastry, between two people's charts. 314 articles.
- All aspects: conjunction, sextile, square, trine and opposition
Personal Transits
What it means when the Moon, Sun, Mercury, Venus or Mars in the sky aspects a point of your birth chart: how it shows up, what to do and what to avoid. 300 articles.
- All personal transits: by transiting planet
Planets in Signs
The Sun, Moon, planets through Pluto, rising sign, Midheaven and Lilith in each of the 12 zodiac signs: character, love, work and money. 156 articles.
- Planets in signs: by planet and sign
Houses
What each of the 12 houses of the birth chart covers, from self and money to partnership and career. 12 articles.
- The 12 houses: 1st through 12th house
Planets in Houses
The area of life where each planet's energy is most visible. 132 articles.
- Planets in houses: by planet and house
Sky Events
Retrograde stations and eclipses with exact times in Eastern Time.
- Mercury retrograde: dates and times, plus Venus and Mars
- Eclipses: solar and lunar, dates, times and US visibility
Calculators
Free charts right on the site, no sign-up needed.
- Compatibility: a synastry chart for two people
- Rising sign calculator: your Ascendant sign and degree
- Solar return calculator: the chart for your year ahead
How to Use the App
How to build a chart, read the wheel and tables, run forecasts and save reports.
- Astrodamus Help: step-by-step guides