Birth charts with the numbers left in
The sky you were born under, computed properly.
Genastro places your Sun, Moon and planets from a real ephemeris and the time zone your birthplace actually used, then tells you how rare your Sun, Moon and Rising combination is, measured across 2,000,000 simulated births.
Free. No account. No daily horoscopes. Ever.
- 13 bodiesSun to Pluto, Chiron, North Node, Lilith
- Swiss Ephemeristhe engine under every chart
- 2,000,000simulated births behind each rarity figure
Start here
Three ways in
Two tools and a course. Everything else on the site hangs off them.
Placements, pair by pair
Look up a placement
A first slice of reference pages centered on Leo: each states how common the placement is, when it was true, and how two traditions read it, side by side.
Why it is different
Computed, not asserted
A real ephemeris
Positions come from the Swiss Ephemeris, the astronomical library used by professional astrology software, for the Sun to Pluto, Chiron, the North Node and Lilith.
Time zones as they were
Clocks changed. The calculator applies the zone your birthplace actually used on your birth date, from the IANA time-zone history, and flags a date that falls in a clock change.
How rare, as a number
Each placement carries a share of a simulation of births and a rank, with the sample size printed. It is a count of how often a placement occurs, not a reading.
The interpretation text is written by an AI and checked by an AI research review, and every block says so. It has not been reviewed by a person yet. How Genastro works.