This screen is the central place for displaying and analyzing a single person’s birth chart (natal chart). By combining the wheel (circular diagram) with six tabs, you can check planetary positions, aspects, houses, dignities, Sabian symbols, and harmonics all on one screen.
Prerequisite: This screen has no input form. First enter and save your birth data on the top page (input screen) before opening this one. If no data is available, the message “No data. Please enter it on the top page.” will be shown. The chart is calculated automatically when the page opens (there is no need to press a “Display” button). Any change to the settings immediately triggers automatic recalculation of everything.
Contents of this page
1. How to read the chart wheel
The circle in the left panel is the chart wheel (when the screen is narrow, it is displayed at the very top).
Outer sign band
The outer ring shows the symbols of the 12 signs, with backgrounds color-coded by element: Fire = pale red, Earth = pale yellow, Air = white, Water = pale blue (the dark theme uses its own dedicated dark color scheme). Tick marks are shown at 1°, 5°, and 10°.
House cusp lines and house numbers
The radiating lines inside the circle are the house boundaries (cusps). Houses 1, 4, 7, and 10 (the angles) are shown with bold lines, and the cusp’s degree label and house number (1–12) appear on the inside of the circle.
Planet symbols
Each planet is shown with a symbol in its own color, with the degree within the sign (degrees-minutes or decimal) displayed next to it. A retrograde planet is marked with a red “R“. Where planets are clustered together, the symbols are automatically spaced out and repositioned, with leader lines and a dot marking the true position (on the inner edge of the sign band) so you can see the actual degree.
Aspect lines
Color-coded lines connecting the planets to each other are drawn in the center of the circle (see the Aspect tab section for the meaning of the colors). Whether these are shown and the orb (allowed tolerance) can be adjusted in the Settings tab.
Information display in the upper left
The upper left of the wheel shows the name, birth date and time (YYYY/MM/DD HH:MM), birthplace name, and coordinates.
2. Basic tab — list of planets and display selection
This is the first tab you see. It is a list of 23 bodies (the 10 planets from the Sun through Pluto, ASC and MC, the North and South Nodes, Lilith, the Part of Fortune, Vertex, East Point, Chiron, and the four asteroids Ceres, Pallas, Juno, and Vesta).
Meaning of the columns
| Column | Content |
|---|---|
| Display | A checkbox. This is the “select which bodies to display” control for this screen. The ON/OFF setting is linked to the wheel, the aspect table, and the HM tab. |
| Symbol | The planet’s glyph (in its own dedicated color). |
| Planet | The name of the body. Clicking it expands the meaning of that body below the row. For the Nodes, the calculation type (T)/(M) is shown, and for Lilith, (M)/(T)/(N) is shown. |
| Sign | Symbol of the sign the body occupies. Clicking it expands the interpretation of “that body × sign”. |
| Degree | Degree within the sign. Degrees-minutes (28°18′) or decimal (28.30) can be switched in the Settings tab. Retrograde bodies are marked with a red R. |
| H | The house the body occupies (e.g. 5H). Clicking it expands the interpretation of “that body × house”. |
| Declination | North/south offset from the celestial equator (2 decimal places + °). Bodies exceeding ±23.44° (out of bounds) are shown in bold red. |
| Dodecatemoria | Shows the symbol of the dodecatemoria (a secondary sign assigned by dividing each sign into 12 parts) in the sign’s color. |
Default state of the display checkboxes
By default, the 10 planets, ASC, MC, and Chiron are ON. The Nodes, Lilith, Part of Fortune, Vertex, East Point, and the 4 asteroids are OFF by default. If a saved selection exists under “Bodies used” on the Settings screen (⚙), that selection takes priority.
3. Aspect tab
A list of aspects (angular relationships) between the bodies whose display is turned ON. Sorted from smallest orb (error) = most exact, first.
Detected aspects (7 types)
| Aspect | Angle | Line color | Category |
|---|---|---|---|
| Conjunction | 0° | Purple | Conjunction |
| Opposition | 180° | Red | Hard |
| Trine | 120° | Blue | Soft |
| Square | 90° | Red | Hard |
| Sextile | 60° | Green | Soft |
| Semisextile | 30° | Pale blue | Adjustment |
| Quincunx (Inconjunct) | 150° | Pale purple | Adjustment |
The orb is common to all aspect types and is adjusted with the slider on the Settings tab (0–10°, in 0.5° steps, default 3.00°). There is no individual ON/OFF setting per aspect type.
Clicking a row
The interpretation expands in four parts: [meaning of body 1] → [meaning of body 2] → [general meaning of the category (conjunction / soft / hard / adjustment)] → [interpretation text specific to this pair] (e.g., “Sun conjunct Moon”).
4. House order tab and dignities
A table listing cusp information and the bodies occupying each house, in order from house 1 to house 12. House 1 is highlighted with (ASC) and house 10 with (MC).
How to read the table
The left cell shows “the cusp’s sign and degree” and “which house that house’s ruler (using the modern ruler) occupies.” The right cell lists the bodies occupying that house (in order of proximity to the cusp), each with a dignity badge. Houses with no bodies show “(No bodies).”
Dignity badges
The “Dignity:” selector at the top switches between Traditional 7 Planets (default) / Modern 10 Planets / Hide. Badges use Lilly-style scoring.
| Dignity | Score | Badge color |
|---|---|---|
| Domicile | +5 | Green |
| Exaltation | +4 | Blue |
| Triplicity | +3 | Teal |
| Term | +2 | Purple |
| Face | +1 | Brown |
| Detriment | −5 | Red |
| Fall | −4 | Orange |
| Peregrine | ±0 | Gray |
If a body holds multiple dignities, a Σ±n (total score) badge is also shown. The tables used are: Term = Egyptian system (the Sun and Moon are excluded), Face = Chaldean-order decans, and Triplicity = Dorothean system (day/night rulers).
Day charts and night charts
If the Sun is above the horizon (the ASC–DSC axis), “☀ Day chart” is shown automatically; if below, “☾ Night chart” is shown. This is used to determine day/night for triplicity rulership.
Differences in Modern 10 Planets mode
Only the domicile/detriment of Uranus (Aquarius), Neptune (Pisces), and Pluto (Scorpio) are added to the classical table. All other dignities are the same as in Traditional mode. Dignity badges are only shown for the traditional 7 planets (plus Uranus, Neptune, and Pluto in Modern mode) — they are not shown for the Nodes or asteroids.
5. Sabian tab
A list of Sabian symbols for all 23 bodies.
Sabian degrees use the round-up convention. A body at 14.2° within a sign is assigned the symbol for “degree 15” (in the Sabian system, the 0°-range = degree 1, and the 29°-range = degree 30).
The Sign, Degree, and Symbol cells highlight together on hover. Clicking a symbol expands its full interpretation, and clicking a body’s name expands the meaning of that body. The interpretation data switches along with the selected language.
6. HM tab (Harmonics)
This tab displays the harmonic chart. Use the “HM select:” dropdown to choose HM1 through HM12 (HM1 = 360°, HM2 = 180°, HM3 = 120°, HM4 = 90°, HM5 = 72°, HM6 = 60°, HM7 = 51.4°, HM8 = 45°, HM9 = 40°, HM10 = 36°, HM11 = 32.7°, HM12 = 30°).
Important specification: When you open the HM tab, the circular chart on the left is redrawn in the harmonic layout itself (an “HM=n” label appears in the upper right). Returning to another tab automatically restores the original natal display.
In the center, a comparison table of “natal position × HMn position” is shown, and on the right, a vertical dial with two lanes, Natal and HMn, is displayed. “Angles and sensitive points” such as ASC, MC, Vertex, East Point, and the Part of Fortune are excluded from the harmonic multiplication (they remain at their natal positions).
7. Settings tab — chart type and calculation conditions
This tab gathers the display and calculation settings for this screen. It has 3 blocks. All changes are reflected immediately.
Block 1: Chart type
Choose from 7 types via the dropdown. The condition input fields appear automatically depending on the type.
| Type | Content | Condition input |
|---|---|---|
| Natal (default) | Birth chart | — |
| Transit | Displays the planetary positions for a specified date/time on their own | Date + time (default = now) |
| Progression | Secondary progressed chart | Target date (default = today) |
| Solar Arc | Solar arc chart | Target date (default = today) |
| Solar Return | Solar return chart | Year (1900–2100) |
| Lunar Return | Lunar return chart | Year + month |
| Harmonics | Selecting this jumps to the HM tab | HM number (on the HM tab side) |
Relocation: If a current location has been saved on the “Current data” tab of the input screen, Transit / Progression / Solar Return / Lunar Return charts are automatically calculated based on that location (coordinates and time zone). If you want to view the chart based on the birthplace instead, clear the current data.
Block 2: Display and houses
| Item | Options | Default |
|---|---|---|
| Degrees-minutes display | ON = degrees-minutes (28°18′) / OFF = decimal (28.30) | Follows the degree display setting on the Settings screen |
| Houses | Placidus / Koch / Whole Sign / Equal / Porphyry / Regiomontanus / Campanus / Morinus / Solar House / Solar Sign (10 systems) | Placidus |
| Nodes | True / Mean | True |
| Lilith | Mean / True / Natural | Mean |
Block 3: Aspects
The “Aspects” checkbox shows/hides the lines on the wheel (default ON), and the “Orb:” slider adjusts the allowed tolerance (0–10°, in 0.5° steps, default 3.00°). Both the lines and the aspect table are updated immediately.
8. Copy and PDF export
📋 Copy circle only
Copies the wheel to the clipboard as a 900×900 PNG image. The copied image has the name, date/time, place, house system, degree format, Node/Lilith type, orb value, chart type, and the app’s URL burned in. In environments where the clipboard is unavailable, it is automatically downloaded as “name_chart.png.”
📄 Circle + basic data PDF
Generates and downloads a single-page landscape A4 PDF. The circular chart is on the left and the Basic tab’s planet table is on the right, with the file named “name_YYYYMMDD.pdf.”
9. Useful specifications to know
- Setting synchronization: The house system, degree format, Node/Lilith type, theme, and language sync bidirectionally with the Settings screen (⚙). Even if you change a setting on another tab, this screen automatically recalculates when you return to it.
- When the birth time is not entered: It is calculated as 00:00. Note that for people whose birth time is unknown, the houses and ASC will not be accurate.
- When no time zone information is available: Rather than miscalculating using Tokyo time, the calculation is done using an approximation based on longitude (Local Mean Time, LMT), and a warning is displayed. Selecting the location again from the list on the input page and saving it will make it accurate.
- Dates before year 1 (BCE): Negative years are displayed as “N BCE”.
- Language switching: Not only the screen’s text but also the interpretation data for the Sabian symbols, aspects, and so on switches to match the selected language.
- Theme: The default is Dark. In Dark mode, the wheel’s color scheme switches to a dedicated palette. The accent color can be changed on the Settings screen.