Hi Product Hunt 👋

I'm Norman from Germany. Geburtshimmel ("birth sky") is my side project. Everything is free; an optional PDF dossier is available soon if you want something to keep or gift.

Why I built it

Most free astrology sites annoyed me as a developer: sign-up walls, ad clutter, vague texts, and often no way to tell whether the chart is even calculated correctly. I wanted the opposite: real astronomy underneath and readable interpretations on top.

What makes it different

Actually calculated. Planet positions come from real ephemerides (astronomy-engine). I tested them against Swiss Ephemeris reference charts: planets within 2 arc minutes, ascendant within 0.1°.
The boring details done right. 235k birthplaces with historical time zones, daylight-saving edge cases, true local solar time for BaZi. Ambiguous birth times are asked, never guessed.
Nothing random. The Tarot birth cards follow arithmetically from your birth date (Mary K. Greer's method). No shuffling.
Free, no account. Results are reachable via an unguessable link and deleted after 30 days.
Readings you can understand. Texts are built from editorially reviewed building blocks instead of generic horoscope filler.

Six tools: birth chart, Star Match (synastry), astrocartography world map, BaZi Four Pillars, numerology and Tarot birth cards. Available in English and German.

Feedback that would help me most

Are the interpretations clear and useful, or still too "astro-speak"?
Which tool would you use first, and which feels missing?
Astrologers among you: check your chart against your usual software and tell me if anything differs.

ps. Astrology is for self-reflection here, not prediction.

Thanks for taking a look! 🚀✨