A workspace for studying birth charts through four lenses — Astrology, Human Design, Gene Keys and Astrocartography — on their own, over time, between two people, across life cycles and against the events of a life.
LIFE EVENTSRecord the moments, periods and places of a life — alone or shared with other charts in the workspace — and annotate Birth and cycle moments with places, tags and notes. Study any of them in the Cycle Explorer (with a summary of what was active in each system), or the sky right now as transits to a chart, see two lives side by side in the Pair Explorer, and browse them by tag to find the transits that recur across moments with the same theme.
YOUR DATACharts and life events are stored only in this browser, on this device; nothing is sent to a server, and shared links never include life events. Use Export workspace to keep a backup or move your charts and events elsewhere, or select charts in the library to export only those. Importing a file asks what to do with charts already here: skip, replace or copy them. Import workspace also reads charts from a CSV (Name, Date, Time, Timezone, City, Country), as other Human Design apps export them.
ACCURACYPositions come from Astronomy Engine. Checked against the Swiss Ephemeris, the Sun, Moon and planets agree to within about 20 seconds of arc (0.005°), the lunar nodes and mean Lilith to within half a minute, and cycle dates to within hours. Chiron is simulated from NASA JPL orbit data and agrees with JPL to within a few seconds of arc from 1800 to 2200.
Birth times are converted with the IANA time zone database, daylight saving included; for births before 1970 it adds the historical time zones browsers leave out, and before standard time was adopted it uses the birthplace’s own local mean time.
BUILT WITH- Astronomy Engine — © Don Cross, MIT License
- Epoch explorer: planetary ephemeris NASA JPL DE441 (via JPL Horizons); long-term precession (Vondrák et al. 2011) computed with ERFA, BSD License
- Map data and relief imagery — Natural Earth (public domain)
- Place names, coordinates and time zones — GeoNames, CC BY 4.0
- Historical time zones — IANA Time Zone Database (public domain)
- Chiron orbit data — NASA JPL Horizons, Solar System Dynamics Group
- DM Mono, Manrope and Playfair Display fonts — SIL Open Font License, included with the app
DEVELOPER
NOTICES“Human Design” and the Rave Mandala, and “Gene Keys”, are trademarks of their respective owners (Jovian Archive and Gene Keys Publishing). Orbital Study is an independent project, not affiliated with or endorsed by them. Descriptions in the app are original summaries.
The Gene Keys’ Shadow, Gift and Siddhi names, and the names of the profile’s spheres and sequences, come from Richard Rudd’s The Gene Keys (Gene Keys Publishing).
Orbital Study is for study and self-reflection; it isn’t a substitute for professional advice.