☉ Overview
Astropractice is a free professional astrology toolkit covering natal charts, compatibility, forecasting, and sky data. The astronomical core has been battle-tested since 1984 — from Commodore 64 to the cloud.
Calculate precise birth chart — planets, houses, aspects, interpretations.
Compare two birth charts and analyse compatibility.
Midpoint chart — the chart of the relationship itself.
See which planets are currently aspecting your natal chart.
Secondary progressions — 1 day after birth = 1 year of life.
Annual chart cast when the Sun returns to natal position.
Monthly chart cast when the Moon returns to natal position.
Planet positions, Moon phases, retrogrades, eclipses, ephemeris.
Ancient timing technique — best times for activities.
Personal lucky numbers derived from natal planetary positions.
👤 Account & Registration
- Save charts for yourself, family, and friends (unlimited)
- Load saved charts with one click in any forecasting tool
- Personalised planetary hours based on your natal chart
- Dashboard with quick access to all saved charts
☉ Natal Chart Calculator
The core tool. Calculates precise planetary positions, house cusps (Placidus), and aspects for any birth date, time, and place.
Input fields
Any label for this chart — e.g. "My Chart" or "John Smith".
Day / Month / Year of birth.
Hour and minute in 24h format (local time at birth).
UTC offset of the birth location. Choose the offset for that era, not today's.
Daylight Saving Time — tick Yes if birth was during summer time.
Start typing a city — autocomplete searches a worldwide database and fills coordinates.
Auto-filled by autocomplete. Can also be entered manually (degrees + minutes + N/S/E/W).
Results tabs
- Data — Raw planetary positions (longitude, latitude, speed, house, sign)
- Personality — Narrative interpretation of Sun, Moon, ASC, and key planets
- Planets in Houses — How each planet expresses itself in each life area
- Planets in Signs — Planetary sign placements with keywords
- Houses in Signs — House cusp interpretations (rising sign, MC, etc.)
- Aspects — Angular relationships between planets with orbs and interpretations
- Planets Today — Transiting planets vs. this natal chart (quick transit view)
- Planetary Hours — Today's planetary hours personalised to this chart
- Save — Save chart to your account (login required)
⚭ Synastry — Chart Comparison
Overlay two birth charts and calculate aspects between them. Used to analyse romantic, family, or business compatibility.
- All cross-aspects between A and B planets (with orbs)
- Key aspects flagged with ★ (personal planets to personal planets)
- Applying / Separating direction for each aspect
- Aspect interpretations (what each cross-aspect means)
- Side-by-side planetary position tables
⊕ Composite Chart
The composite chart is the midpoint chart of two people — it represents the relationship itself as a separate entity, not the individuals.
- Each planet is placed at the midpoint between both people's equivalent planets
- The ASC and MC are midpoints of the two Ascendants and Midheavens
- Aspects within the composite chart reveal the nature of the relationship
- Results include composite positions, aspects, and key planet interpretations
⟳ Transits
Shows which planets in the sky (for a chosen date) are forming aspects to your natal positions.
- Natal Chart — birth data (or load from saved charts)
- Transit Date — any date from 1900–2100 (defaults to today)
- Time UTC — matters most for the Moon (~12°/day)
- All active transit aspects within standard orbs (conjunction ±3°, opposition/trine/square ±2.5–3°, etc.)
- ★ Major transits — outer planet (Jupiter–Pluto) aspecting personal planet (Sun–Mars, ASC/MC)
- Applying / Separating indicator
- Retrograde flag on transiting planets
- Plain-language interpretation for each transit
- Current planet position table
- Natal position table for comparison
Aspect orbs used
➤ Secondary Progressions
"A day for a year" — each day after birth corresponds to one year of life. The progressed chart shows the inner evolution of your natal chart over time.
- Enter birth data + target date (any date in your life)
- System calculates the progressed date: birth date + (target_year – birth_year) days
- Shows progressed positions vs. natal positions side by side
- Progressed Moon moves ~12° per year (sign change every ~2.5 years)
- Progressed Sun moves ~1° per year (sign change every ~30 years)
- Tight aspects (≤1°) between progressed and natal planets are most significant
- Progressed Sun sign + natal comparison
- Progressed Moon sign + natal comparison
- Progressed Moon Phase (New Moon through Balsamic)
- Progressed ASC and MC
- All progressed→natal aspects within 1° orb, sorted by exactness
☀ Solar Return
Once a year the transiting Sun reaches the exact degree of your natal Sun. The chart cast for that precise moment describes the major themes of the coming year.
- Return Year — which year's Solar Return to calculate (1920–2040)
- Location — use birth location (traditional) or current/relocated location
- Exact moment of Solar Return (UTC date and time)
- SR Ascendant — sets the overall theme of the year
- SR Moon — emotional tone of the year
- SR Sun position (confirms alignment with natal Sun)
- SR Midheaven — career and public direction
- Full ASC and Moon sign interpretations
- SR → Natal aspects table (★ key personal contacts highlighted)
- SR planet positions vs. natal positions
☽ Lunar Return
The Moon returns to its exact natal degree every ~27.3 days. The chart describes the emotional tone and key events of the coming month.
- Month + Year — which month's Lunar Return
- Quick navigation buttons: ← previous / This month / next →
- Location — birth or current/relocated
- Exact moment of Lunar Return (UTC)
- LR Ascendant — monthly focus (changes sign ~every 2 hours → location matters!)
- LR Moon = natal Moon (confirmation + orb)
- Moon Phase at LR moment
- LR Sun sign — seasonal backdrop
- LR → Natal aspects (★ key contacts first)
- Month navigation at the bottom (← / →)
🌍 Today's Planetary Positions
Live table of all planet positions for today (or any selected date), updated automatically.
- Positions for Sun, Moon, Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto, North Node
- Sign, degree, and minute for each planet
- Retrograde indicator (R)
- Speed (degrees per day)
- Date selector to browse any date
🌙 Moon Phases
- All New Moon and Full Moon dates for the current and following years
- Exact UTC time for each phase
- Moon sign at the moment of the phase
- Eclipse flags (Solar and Lunar eclipses)
⟳ Retrograde Planets
- All retrograde periods for Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto
- Start date (Rx station), end date (Direct station)
- Sign at each station
- Duration in days
- Current/upcoming retrogrades highlighted
📅 Ephemeris
- Monthly table of daily planetary positions
- All major planets + North Node
- Retrograde markers
- Month / Year navigation
- Compact format for quick scanning
⏱ Planetary Hours
An ancient Hellenistic timing technique dividing the day into 12 day-hours and 12 night-hours, each ruled by a planet. The sequence always starts with the planet of the day (Sunday = Sun, Monday = Moon, etc.).
- Enter any location (or use your browser's GPS)
- See all 24 hours with start / end time
- Current hour highlighted
- General activity keywords for each planet
- After calculating a natal chart, click Planetary Hours in the results menu
- Each hour is rated 0–10 based on the planet's dignity in your natal chart
- Color coding: Excellent (8–10) · Good (6–7) · Neutral (4–5) · Challenging (2–3) · Avoid (0–1)
- Takes into account essential dignities (domicile, exaltation, detriment, fall) and natal aspect strengths
Planet themes
📚 Learn Astrology — Elements
All 12 signs — element, modality, ruler, keywords, compatibility.
Sun through Pluto + North Node — meaning, rulership, dignities.
The 12 houses — life areas, natural sign, cusp interpretations.
Major and minor aspects — orbs, meaning, applying vs. separating.
Part of Fortune and other Arabic Parts — formulas and meanings.
Visual gallery of all 12 signs with detailed descriptions.
A–Z astrological terminology explained.
History of astrology from ancient times to the present.
Celebrity and historical birth charts with analysis.
🌟 Famous Charts
- Library of celebrity and historical birth charts
- Accurate birth data (date, time, place)
- Planetary positions and house placements
- Short astrological profile for each person
- Browsable by category (actors, politicians, musicians, historical figures…)
🎲 Lucky Numbers
Derive your personal lucky numbers from your natal chart planetary positions using numerological reduction.
- Numbers derived from each planet's zodiac position (degree + sign)
- Numerological reduction to single digits or master numbers
- A combined set of personal lucky numbers unique to your birth chart
💾 Saved Charts
If a chart with the same name already exists for your account it will be updated, not duplicated.
When logged in, a ⭐ Load saved chart dropdown appears above the natal chart form in: Transits, Progressions, Solar Return, Lunar Return, Synastry, and Composite.
- Full list of all your saved charts with date saved
- Chart button — recalculate and view the full natal chart
- PH Today button — personalised planetary hours for today
- Delete button — permanently remove a chart
Each person's chart panel (Person A / Person B) has a 💾 Save button in the header. Click it to save that person's birth data directly from the synastry form — no need to go to the Natal Chart calculator first.
👥 Membership & Access
Astropractice has three access levels:
| Feature | Guest | Registered (free) | Premium $2.99/mo |
|---|---|---|---|
| Natal horoscope calculation | ✓ | ✓ | ✓ |
| Planet/house/sign interpretations | partial | full | full |
| Fixed Stars, Antiscia, Midpoints, Declinations | ✗ | partial | full |
| Arabic Parts, Heliocentric | ✗ | ✗ | ✓ |
| Synastry, Solar Return | ✗ | chart only | full |
| Composite, Progressions, Lunar Return | ✗ | ✗ | ✓ |
| Planetary Hours, Transits Today | ✗ | ✗ | ✓ |
| Save charts | ✗ | ✓ | ✓ |
| Ad-free experience | ✗ | ✗ | ✓ |
| Almanac, Glossary, Articles | ✓ | ✓ | ✓ |
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The Ancients do enjoyn us seriously to consider of present Solar and Lunar Eclipses, and there is something therein to be considered; but in reality I declare, that nothing of that powerful efficacy ever appeared unto me as they have delivered and given caution of, I mean Eclipses operate not with that violence, or so terribly as the Ancients have recorded and left in their writings to posterity, however they are with moderation to be handled; and the truth is, they do rather work generally than particularly. - William Lilly (1602.-1681.)