ephemeris_bi_wheel
Read-only
Generate a bi-wheel SVG comparing two charts for synastry or transit analysis, with Subject A's planets on the inner wheel and Subject B's on the outer wheel. Requires birth data for both subjects.
Instructions
Generate a Bi-Wheel (Synastry/Transit) image (SVG) comparing two charts. Draws Subject A's planets on the inside wheel and Subject B's on the outside wheel. Returns a native SVG that Claude displays inline in the conversation.
CREDIT COST: 2 credits per call.
EXAMPLE: Compare someone born April 15, 1990 (A) to someone born June 10, 1992 (B): datetime_a='...', latitude_a=..., longitude_a=..., datetime_b='...', latitude_b=..., longitude_b=...
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| datetime_a | Yes | ISO 8601 datetime string, e.g. '1990-04-15T14:30:00' (local time at birth location). Include timezone offset if known, e.g. '1990-04-15T14:30:00-05:00'. | |
| timezone_a | No | IANA timezone name for subject A, e.g. 'America/Denver'. | |
| latitude_a | Yes | Latitude for subject A | |
| longitude_a | Yes | Longitude for subject A | |
| datetime_b | Yes | ISO 8601 datetime string, e.g. '1990-04-15T14:30:00' (local time at birth location). Include timezone offset if known, e.g. '1990-04-15T14:30:00-05:00'. | |
| timezone_b | No | IANA timezone name for subject B, e.g. 'Europe/London'. | |
| latitude_b | Yes | Latitude for subject B | |
| longitude_b | Yes | Longitude for subject B | |
| house_system | No | House system to use. Defaults to 'placidus' if omitted. | |
| style | No | Aesthetic style of the chart: 'light' (default, warm cream background), 'dark' (deep navy), or 'mono' (black-and-white print-ready). |