Learn · The diosa library
Learn astrology from a source you can check
Every guide here is written against a working chart engine. When we say “the Moon was at 15° Sagittarius,” it's because we computed it, and we show the receipts. Long-form, no filler, no horoscope spam.
Start here
What is a birth chart? The complete, honest guide
Planets, signs, houses, aspects: what the wheel actually is, how the math is done, and how to verify any chart yourself.
Method
How to read your birth chart, step by step
A repeatable five-step reading order used by professional astrologers, with a worked example on a real chart.
Placement deep-dive
The rising sign (ascendant), explained properly
Why the ascendant is the chart's hinge, why your birth time decides it, and why apps keep getting it wrong.
Placement deep-dive
Your moon sign, explained without the fluff
What you need to feel safe, why the birth minute decides it, and how to find yours accurately.
Sky mechanics
Mercury retrograde: what actually happens
The astronomy, the astrology, and the receipts. What retrograde means, how often, and what an honest reading says.
Method
Whole-sign vs Placidus houses
Why house systems disagree, what actually changes, and how we handle it: show both, label everything.
Data
The 2026 transit calendar
Every retrograde station and lunation this year, computed on our own ephemeris to the minute.
Prefer to just see yours?
Cast your birth chart free: exact positions, houses, and aspects, computed on Swiss Ephemeris, with receipts on every factor.
Cast your chart, free