Planetsrange
Calculated as a full-local-date interval, never with invented noon.
profile creation
Build Birth Chart
The form is connected to Reality Engine: exact time calculates planets, angles, the selected houses, and aspects; approximate time propagates the declared +/- range; unknown time builds an interval profile across the full local date. OmenHall never inserts a hidden noon or promotes an unverified ASC/house to fact.
Calculation first
Reference placements, Ascendant/MC with exact time, and calculation provenance.
The full interpretation cannot rewrite facts already calculated.- 01Choose personData comes from the account or can be entered once for another person.
- 02Confirm authorityExact time permits precise geometry; approximate time becomes a range; unknown time becomes the full local-date interval without a hidden noon.
- 03Assemble chartPlanets, Ascendant/MC, houses, and aspects are built from calculation, not model prose.
- 04Open profileThe scroll explains a person's stable structure without replacing it with a current forecast.
verifiable profile
Build Birth Chart
Birth evidence, calendar, and civil time are fixed first; then the server calculates the sky. Exact time can yield exact geometry, approximate time propagates through a declared ± interval, and unknown time becomes a full-day envelope without invented 12:00.
who is this for
Whose Birth Chart is this
Your data comes from your account. Another person can be used once or saved separately. Source data is fixed before interpretation.
Search uses OmenHall's local GeoNames cities500 copy, CC BY 4.0. No metered external geocoder is called for each search. GeoNames
Precise place coordinates (advanced)
Coordinates are needed for exact houses, angles, and synastry overlays. They are not fetched again for every calculation: OmenHall stores the resolved place in the Person Passport. The local GeoNames gazetteer supplies coordinates and IANA timezone without a paid API; manual entry remains a fallback for rare places.
Without sign-in, data is not saved: you can use a one-time profile. After sign-in, Me and Saved Person become available.
Birth Authority Gate
What these birth data can actually support
Aspectsrange
Interval mode shows sampled stability rather than false continuous proof.
ASC / MCneeds data
An exact point requires exact time + coordinates.
Housesneeds data
Unknown time never receives one invented house.
Birth evidence packet
Name
not provided
Date
—
Time
Unknown time
Place
—
Timezone
—
Coordinates
not provided
Temporal house system; polar geometry fails closed instead of silently switching systems.
One-time profiles are never stored automatically.
The full recorded local-date interval is calculated: stable/possible placements are shown, but no single Ascendant, MC, or exact house is promoted as fact.
An unknown-time envelope needs the birth date and the place's IANA timezone; no clock time is needed or invented.
Natal authority
After calculation, this area shows either an exact chart or interval authority. OmenHall does not insert demo placements as personal data before calculation.
Birth date
Needed for Sun, Moon, and planet positions.
Store as a private profile field.
Birth time
Needed for houses, Ascendant, MC, and precise Moon.
If time is unknown, the answer must honestly switch to unknown-time mode.
Birth place
Needed for timezone, coordinates, and houses.
Do not show publicly or use for ads.
Profile name
Needed for archive convenience: me, partner, child, project persona.
The name may be a nickname.