How readings are made
Vesper calculates the sky with an astronomy library, the same kind of mathematics observatories use, then compares it with your birth chart. Each sentence you read comes from Vesper's own knowledge base: hundreds of original entries on signs, planets, houses, transits, Vedic astrology, numerology and palmistry, written for Vesper after study of classic and modern books on these subjects. No artificial intelligence writes your reading at the moment you open it. The same sky and the same chart always give the same reading.
A note on what astrology is
Astrology, numerology and palmistry are traditions of reflection, not science. Vesper offers them for entertainment and self-reflection. Nothing here is medical, legal, financial or psychological advice, and nothing here predicts your future. Your own judgement always comes first. If you are struggling, please talk to someone you trust or a professional.
Free, with ads
Every feature is free for everyone. Vesper is paid for by advertising from Google AdSense, shown only in a few clearly marked places.
Your data
Your birth details and everything you write stay on your device unless you choose to sign in to sync them. See the privacy policy.
Data and libraries
- Planet positions: Astronomy Engine (MIT licence).
- Places: GeoNames (CC BY 4.0).
- Stars: HYG Database v4.1 by David Nash (CC BY-SA 4.0); the Birth Sky star file is shared under the same licence.
- Constellation lines: d3-celestial by Olaf Frohn (BSD 3-Clause).
- Hand tracking: MediaPipe by Google (Apache 2.0), run entirely in your browser.
- 3D: three.js and React Three Fiber (MIT). Fonts: Cormorant Garamond, Manrope and IBM Plex Mono (SIL Open Font Licence).
Contact
Write to hello@vesper.example.