The observatory
Explore your atlas.
Turn a question into a chart, a map, or a new perspective.
System or tradition
Everything
39 tools · your birth profile stays with you
Understand a chart
- Zi Wei palace chartPlace fourteen principal stars in twelve topic palaces and inspect their source-defined positions.Resolved non-leap lunar inputs · AFSI2006 placement slice
- Chart studioInspect the current tropical or sidereal natal wheel and select a planet.Selected tropical or sidereal lens · natal placements
- Jyotish chartOpen the natal chart with an explicit compatible Jyotish reference and whole-sign convention.Native Jyotish lens · compatible sidereal reference · whole signs
- Human Design explorerExplore your BodyGraph with sourced center, authority and definition readings, and trace its birth/design activations.Tropical gates · 88° design arc · selected node convention
- Gene Keys sphere dataInspect fourteen key/line sphere mappings and the birth or design body used by each.Tropical birth/design activations · 14 sphere mappingsData view
- Draconic explorerChoose true or mean nodes, compare the rotated chart, and inspect tropical overlay contacts.Node-relative rotation · named overlay method or exploration aspects
- Heliocentric skySelect Earth or a planet in the Sun-centered wheel and inspect physical coordinates and contacts.Ecliptic of date · Earth included · Moon optional · no terrestrial houses
- Navamsa · D9Compare D1 and D9 in a native fixed-sign chart, with chosen ayanamsha and lunar nodes.Standard Parashari mapping · derived lagna · six reference choices
- Vimshottari periodsInspect any instant in the recorded major/subperiod cycle and read the lords in their natal context.Lahiri Moon · 365.25-day years · exact UTC boundaries
- Divisional chart studioCalculate sixteen divisions, compare grahas, follow sign rulers and test nearby birth-time samples.Six sidereal references · declared Parashari mappings · D30 sign-only
Explore a place
Ask a question
Find a pattern
- Harmonic explorerTransform longitudes by an integer harmonic and inspect conjunctions, midpoint branches and reflections.Selected longitude frame · factors 1–360
- Vibrational patternsSearch explicit all-pair or connected planetary patterns across harmonic factors.Selected frame · explicit graph and orb rules
- Natal aspects & midpoint dataInspect eleven preselected tropical longitude aspect types and two branches for every midpoint pair.Tropical natal aspects · declared orbs and phaseData view
- Custom longitude combinationsExplore an A + B − C angular combination and tropical harmonic transforms.Tropical longitudes · choose an explicit formulaData view
Explore relationships
Explore timing
- Secondary progressionsCompare a target-date day-for-year sky with natal planets and attributed Western readings.Direct365.25 · tropical geocentric planets · no houses or angles
- Annual profectionsExplore an age’s whole-sign house, traditional lord and sourced natal reading.Tropical Ascendant · whole signs · completed age · traditional rulers
- Solar & lunar returnsFind the first Sun or Moon return in a chosen window and build its exact chart.Tropical or six sidereal references · exact instant · chosen location · whole-sign reading
- Transits & gocharaCompare a chosen moment with the birth chart through Western degree aspects or native Jyotish sign counting.Independent transit snapshot · fixed natal targets
- Exact transit eventsFind exact aspects, direct and retrograde sign entries, and longitude stations.Seven zodiac references · all verified dates in a bounded window
- Daily panchangaFollow the five limbs from sunrise to next sunrise, with exact changes and named daylight periods.Six sidereal references · explicit date, place and sunrise convention
Explore calendars
- Chinese calendarFind a lunar date and compare the Lunar New Year and Li Chun year labels.Local date · China UTC+08 · Li Chun solar year
- Calendars & Four PillarsCompare BaZi clock variants, Chinese lunar dates, Maya counts and the annual Nine Star Ki result.Calendar-specific boundaries · selected BaZi clockData view
- Instant panchangaExplore the tithi, lunar mansion, yoga and karana with their angular progress and calculation rules.Lahiri birth instant · four divisions · civil weekday shown separately
- Four Pillars explorerExplore your eight characters, seasonal month and the differences between six clock conventions.BaZi pillars · explicit clock and day boundary · sourced introductory meanings
- Nine Star annual explorerExplore an annual number and its sourced meanings; compare two explicit year boundaries.Annual only · fixed February 4 or astronomical 315° comparison · independent date
- Phugpa Tibetan calendarConvert dates, explore omitted and repeated lunar days, and read the full calendar label.Phugpa E1987 · Janson a₂=1/28 · date-only conversion
Inspect the sky
- Synoptic reportGenerate a complete gate-by-gate report with Hold, Practice and Equanimity readings, chart evidence and offline export.Birth + design activations · 64-key reflection library · HTML / print
- Planet positions & referencesInspect tropical, six detailed sidereal charts, and 47 built-in sidereal position references.Selected lens · six detailed sidereal referencesData view
- House systems & sectorsCompare the saved tropical cusp or sector divisions and explicit unavailable results.Tropical cusps · includes aliases and 36-sector outputData view
- Stars & galactic catalogueSearch astronomical names and identifiers, categories, coordinates and sourced symbolic associations.Tropical catalogue · astronomical names and symbolic contextData view
- Asteroids & centaursInspect the six supplied minor-body positions and their distinct astronomical or symbolic descriptions.Tropical · six included minor bodiesData view
- Hamburg School model pointsInspect the eight calculated hypothetical point models and school-specific descriptions.Tropical mathematical models · Hamburg SchoolData view
- Rise/set & eclipse dataInspect next Sun/Moon horizon or meridian events and adjacent global eclipses.Events relative to birth instant · UTC timestampsData view
- Complete raw calculationInspect every returned category, units, conventions and unavailable results, or download the full chart.All recorded reference frames · units and flags retainedData view
- Lunar mansion atlasExplore the 27 nakshatras, sourced word origins and divine associations around your birth Moon.Six sidereal references · 27 equal mansions · four padas and D9
Let curiosity lead.
Start at Astrology and follow the branches. Hover over a dotted term for its meaning, word origin, how we know it, and its sources.