01 · Your chart
The wheel, the ledger, the truth
Exact positions to the arc-minute, whole-sign and Placidus houses side by side, aspects with true orbs. It looks like an ephemeris because that's what it is.
Ground · Check · Know
You were born at a specific minute, in a specific place. The sky at that moment can be calculated exactly, and we think you deserve to see the math. diosa computes your chart on Swiss Ephemeris and shows the receipts behind every reading. If the engine can't prove it, the app won't say it.
Free tier · No card · Your data stays yours
The sky right now, computed
liveThe difference
Today's Sun in Virgo 4°56′. Printed, not paraphrased
Retrograde bodies flagged straight from the ephemeris. If it says Rx, the speed was negative
Every reading line opens its receipt: the exact positions, orbs, and rules behind it
Uncertain birth time? The chart says so. No guessing dressed up as calculation
Mint = engine-verified. The table above is what “you can check” means in practice.
Receipts: what every claim carries
What you get
01 · Your chart
Exact positions to the arc-minute, whole-sign and Placidus houses side by side, aspects with true orbs. It looks like an ephemeris because that's what it is.
02 · Your sky
The live sky against your chart: applying and separating, ingresses and stations, each with the orb that makes it real. Nothing is “in effect” that isn't in the math.
03 · Your receipts
Every claim in a reading links back to a chart factor and a rule. Disagree with a line? Open the why-panel and see exactly what the engine saw.
Proof, not promises
Data
The 2026 transit calendar
Every retrograde station and moon phase this year, computed to the minute. Dates with provenance.
Learn
Birth chart, explained
What the wheel actually is, how the math is done, and how to verify any chart yourself.
Why
The manifesto
Exact math, framed meaning. What we compute, what we refuse to claim, and why the difference matters.
Questions
Every reading shows its work. Positions come from Swiss Ephemeris, the same calculation library professionals use. Each interpreted factor carries a receipts panel: dignity, sect, aspect orb, house system. If the engine can't prove a chart fact, the app won't claim it.
Casting your birth chart, the sky screen, and transits are free. Create a free account and your chart is saved and synced.
A snapshot of the sky at the exact moment and place you were born: every planet's zodiac position, the rising sign, and the house layout. Our guide, the birth chart explained, walks you through yours.
Whole-sign houses by default. It's the oldest and least ambiguous system. Placidus is there too if you want to compare. Every receipt panel prints the house system in use, so you always know which lens you're reading.
The Ascendant moves about one degree every four minutes, and it sets your whole house layout. A rounded or guessed time can shift your rising sign and every planet's house. diosa asks you to confirm your timezone and flags uncertain times instead of hiding them.
Honestly? Its interpretations are not testable science, and we won't pretend otherwise. What diosa does promise is different: the astronomy is exact, the method is documented, and every claim is auditable. You're invited to check the math. That's the product.
We treat it as sensitive. It lives in your own row, protected by row-level security, and it's never sold or used to train models. Delete your account and it goes with you.
Cast your chart in about a minute. Check every claim forever.