Computed
Reproducible facts
- UTC instant and Julian Day
- Planetary longitudes and retrograde motion
- Houses, aspects, orbs, and ranked timing signals
- The conventions and engine version used
Birth moment · chart · reading · print
How your chart is made
A chart begins with a place and a clock reading. Follow that input as it becomes one instant, a map of the sky, a reading, and a print you can hold.
A synthetic birth instant
A place and clock reading become one astronomical instant.
This is where chart calculators most often disagree. WavePoint keeps the whole resolution chain beside the chart so the instant can be checked.
- 01Place entered
New York
The place name is kept for the chart label.
- 02Coordinates found
40.7128° N · 74.0060° W
Coordinates locate the horizon and house cusps.
- 03Time zone resolved
America/New_York
Resolved from the coordinates.
- 04Clock reading
Jun 15, 1990 · 2:30 PM
The entered wall-clock time had one historical reading.
- 05Historical offset
UTC−04:00
Historical offset in force at that date and place.
- 06UTC instant
1990-06-15 18:30:00 UTC
This is the single instant used for every planetary position.
- 07Julian Day
2448058.270833
This time coordinate is handed to the ephemeris.
From instant to reading
The same facts climb through five layers.
The lower rungs are measurements. The upper rungs organize those measurements and select writing without changing the chart beneath them.
Every value below is computed from a synthetic chart — a worked example, not a lookup table.
L1Where the bodies were
Sun♑ 28° 24'298.40°Moon♑ 24° 39'294.65°Jupiter♋ 19° 1'109.02°℞+7 more
L2The chart takes shape
SunGeminiMoonPiscesarc targetRisingLibra
e.g. Sun Square Moon (5.4° orb)
L3Relationships measured
Emotional Expansionharmonious
Jupiter Trine natal Moon
significance 76 / 100convergence: 1 cluster
L4Context is applied
☉ Sun in Capricorn·☽ Moon in Capricorn
tightest theme — #1 of 19 ranked aspects
L5The reading is written
You may feel steadier than usual today — as if your plans have weight and patience is no longer a burden but a skill. You might feel the urge to break a routine this afternoon. See what opens when you take the unexpected turn. Shifts, unexpected turns, or new directions might find you this month — adaptability is your best tool. You're in a year that rewards steady, deliberate building — foundations laid now will hold.
focus: Emotional Abundance
How we check ourselves
Thirty-six arcseconds is the ordinary ceiling.
WavePoint tests its astronomy against an independent, pinned Swiss Ephemeris reference. The receipt belongs to the engine contract, not to any one reader's chart: the oracle runs at fixed test instants, never as a hidden claim beside your Mars or Moon.
The contract was set against the pinned Swiss Ephemeris oracle after a 219,147-sample sweep from 1850 through 2149. The browser Moon stayed within about 19″ and is pinned at 25″; the mean node measured 0.17″ and is pinned at 1″.
A quarantine is a disclosed boundary, not a quiet pass. WavePoint also refuses unsupported dates and returns a typed error when a requested quadrant house system is undefined near the poles. Read the contract.
From screen to paper
The print starts from the chart, not a screenshot.
Screen and poster share the same validated chart model. The print pipeline rebuilds the composition at press scale, then proves that every mark and character can survive the raster.
- 01
Validated chart facts
Positions, houses, aspects, and named points enter one ChartDocument.
- 02
Owned composition
The server rebuilds the wheel and page from facts; it never accepts a browser-authored SVG.
- 03
Committed type
Only bundled WavePoint fonts load. System-font fallback stays off.
- 04
Glyph proof
A cmap check stops the render with 422 if any character lacks a real glyph.
- 05
Private delivery
A paid file stays private and reaches its buyer through a short-lived download URL.
The 18 × 24 master is 5,400 × 7,200 pixels at 300 DPI. The 12 × 16 file uses the same 3:4 composition at its own press resolution.
Today's product is a digital press file. Physical fulfillment is not part of this pipeline.
What never left the browser
The link carries the chart after the #.
A URL fragment belongs to the browser, so the document request omits it. On a current chart link, WavePoint recomputes the chart here without sending the birth date, clock time, place, coordinates, resolved UTC instant, or calculated positions.
Transport
Birth values never enter the path or query string. Older links without a pinned zone may make one coordinates-only timezone lookup.
Rendering
Google Analytics and AdSense stay off on this route. PostHog's session recorder does not start.
Defense in depth
Personalized output also carries the recorder's block class in case a future route-policy change misses the boundary.
City search is a separate, explicit server lookup. Saving stores a chart only after you choose to save it; opening this page does neither.