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❓ Help & Feature Guide

☉ 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.

Synastry

Compare two birth charts and analyse compatibility.

Composite

Midpoint chart — the chart of the relationship itself.

Transits

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.

🌍 Almanac

Planet positions, Moon phases, retrogrades, eclipses, ephemeris.

Ancient timing technique — best times for activities.

Personal lucky numbers derived from natal planetary positions.

👤 Account & Registration

Why create an account?
  • 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
Registration
1Click Log In (top right) → switch to Register tab
2Enter name, username, e-mail, and password
3Click Register — you're ready
All passwords are stored with bcrypt hashing. Charts are private — only you can see them.

☉ Natal Chart Calculator

The core tool. Calculates precise planetary positions, house cusps (Placidus), and aspects for any birth date, time, and place.

Input fields

Name

Any label for this chart — e.g. "My Chart" or "John Smith".

Date

Day / Month / Year of birth.

Time

Hour and minute in 24h format (local time at birth).

Timezone

UTC offset of the birth location. Choose the offset for that era, not today's.

DST

Daylight Saving Time — tick Yes if birth was during summer time.

Place

Start typing a city — autocomplete searches a worldwide database and fills coordinates.

Latitude / Longitude

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)
Accuracy note: The calculation engine is unchanged since 1984 and validated over 41 years. For maximum precision provide exact birth time — house cusps and ASC change ~1° every 4 minutes.

⚭ Synastry — Chart Comparison

Overlay two birth charts and calculate aspects between them. Used to analyse romantic, family, or business compatibility.

How it works
1Enter birth data for Person A (or load from saved charts)
2Enter birth data for Person B
3Click Calculate Synastry
Results include
  • 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
Logged-in users can load any saved chart into Person A or Person B via the ⭐ Load saved chart dropdown.

⊕ 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
Same input as Synastry — both saved charts can be loaded from dropdown.

⟳ Transits

Shows which planets in the sky (for a chosen date) are forming aspects to your natal positions.

Input
  • 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)
Results
  • 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

☌ Conjunction ±3° ☍ Opposition ±3° △ Trine ±2.5° □ Square ±2.5° ⚹ Sextile ±1.5° ⚻ Quincunx ±1°
Transit orbs are intentionally tighter than natal orbs — transits are brief events.

➤ 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
Key highlights shown
  • 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.

Options
  • Return Year — which year's Solar Return to calculate (1920–2040)
  • Location — use birth location (traditional) or current/relocated location
Results
  • 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
Location matters: Many astrologers cast the Solar Return for the location where you physically are on your birthday, not your birth place.

☽ 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.

Options
  • Month + Year — which month's Lunar Return
  • Quick navigation buttons: ← previous / This month / next →
  • Location — birth or current/relocated
Results
  • 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 (← / →)
Use Lunar Return together with Solar Return for a complete picture — Solar Return = yearly overview, Lunar Return = monthly detail.

🌍 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.).

Today's Planetary Hours (no chart needed)
  • 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
Personalised Planetary Hours (with natal chart)
  • 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

☉ Sun Leadership, success, visibility, contracts, meetings with authorities
☽ Moon Intuition, public, home matters, travel, emotions, family
☿ Mercury Communication, writing, learning, short trips, negotiations
♀ Venus Love, beauty, art, social events, harmony, pleasures
♂ Mars Action, sports, surgery, conflict, starting new projects
♃ Jupiter Expansion, education, law, philosophy, long-distance travel
♄ Saturn Discipline, structure, long-term planning, authority, karma

📚 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.

How it works
1Calculate a natal chart (or load a saved chart)
2Click Lucky Numbers in the results menu
3The system extracts numbers from your planetary positions
What you get
  • 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
Lucky numbers are based on the exact positions of planets at birth — different birth times produce different results.

💾 Saved Charts

Saving a chart
1Calculate a natal chart
2Click 💾 Save in the results menu (login required)
3Chart is added to My Account → Saved Charts

If a chart with the same name already exists for your account it will be updated, not duplicated.

Using saved charts in forecasting tools

When logged in, a ⭐ Load saved chart dropdown appears above the natal chart form in: Transits, Progressions, Solar Return, Lunar Return, Synastry, and Composite.

1Open any forecasting tool
2Select a chart from the Load saved chart dropdown
3All fields (name, date, time, place, coordinates) are filled automatically
4Click Calculate
Saved Charts page (My Account → Saved Charts)
  • 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
💾 Save button in Synastry / Composite forms

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
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Almanac, Glossary, Articles

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✦ Astro Quote
The Sun is the spring of the animal force; the Moon is the spring of the natural force; Saturn, the spring of the adhesive force; Jupiter, the spring of the progressive force; Mercury, the spring of intellectual force; Mars, the spring of the choleric force and Venus is the spring of the passional force. That's why, Mercury, Mars and Venus points out in the natal horoscope the character and profession of the person. - Ptolomeus