Augurine learning library
Learn Astrology
Move from chart basics to timing, relationship work, traditional doctrine, asteroids, harmonics, and sky reference guides without losing the thread.
- root guides
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- guide families
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- deep pages
- 625
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10 essentials Chart foundations and birth data
Start here for the chart reading order, the Big Three, aspects, houses, and birth-time questions.
- Fundamentals
How to Read Your Birth Chart
Your birth chart is a map of the sky at the moment you were born. This guide walks through the four building blocks, planets, signs, houses, and aspects, so you can start reading your own chart without getting lost.
Read guide - Fundamentals
The Big Three in Astrology
The Big Three in astrology are your Sun sign, Moon sign, and Rising sign. This guide explains what each one means, how they work together, and how to find yours with or without a birth time.
Read guide - Fundamentals
Rising Sign (Ascendant)
How the rising sign differs from the Sun sign, why whole-sign houses make it the architectural foundation of the chart, and how the Ascendant degree works in predictive astrology.
Read guide
Reading order
- FundamentalsSun Sign vs Moon SignThe Sun sign is your conscious identity. The Moon sign is your emotional core. Here's how they differ, why many people relate more to their Moon sign, and how to find yours.
- Timing TechniquesChart RulerYour chart ruler is the planet that rules your Ascendant sign. Learn how to identify it, assess its condition by dignity and house, and use it in natal interpretation and timing.
- FundamentalsNatal AspectsAspects are the angles between planets in your birth chart. They determine which planets talk to each other and whether the conversation is easy or tense. This guide covers the five major aspects, orbs, and the difference between applying and separating.
Signs and houses
- FundamentalsThe Twelve HousesThe twelve houses divide the birth chart into areas of life, identity, money, communication, home, and so on. This guide explains what each house represents, the angular/succedent/cadent framework, and whole-sign vs. quadrant systems.
- Mind and communicationMercury in the SignsThe natal Mercury sign as how you think, learn, and communicate, its dignity, and growth edge.
- Growth and fortuneJupiter in the SignsThe natal Jupiter sign as how you grow, where you find luck, its dignity, and where it overreaches.
- Uranian AstrologyBasic FiveThe Basic Five are the five personal axes in Uranian astrology built from the Midheaven, Ascendant, and Sun. Learn what each axis represents and why they are the starting point for any planetary-picture reading.
Birth time
- FundamentalsBirth Time RectificationBirth time rectification is an astrological technique for estimating an unknown birth time by correlating life events with timed chart factors. Learn how Augurine's current engine works, which events produce stronger evidence, and how to evaluate candidate times.
- FundamentalsHow to Find Your Birth TimeFind your exact birth time through birth certificates, hospital records, and vital statistics offices. Covers US, UK, India, and international options, plus how computational rectification can fill the gap when records are unavailable.
- FundamentalsAstrology Without a Birth TimeYou can still learn a lot from your chart without a birth time. This guide covers what stays accurate, what becomes uncertain, and how to work with an incomplete chart while exploring options to find or rectify your birth time.
Deep guide families
Mercury sign pages
Twelve Mercury sign guides for thinking, communication, dignity, and growth edges.
Jupiter sign pages
Twelve Jupiter sign guides for growth, luck, dignity, and where each placement overreaches.
Traditional doctrine
Hellenistic and traditional technique, including dignity, sect, rulership, bounds, and doctrine.
- Fundamentals
Essential Dignities in Astrology
Essential dignity is the traditional system for evaluating how well a planet functions based on its zodiac sign. Learn domicile, exaltation, detriment, fall, peregrine, the complete dignities table, and how traditional astrologers use dignity scores to judge planetary condition in a birth chart.
Read guide - Fundamentals
Sect in Astrology
Learn what sect means in astrology: how day and night charts determine your most benefic planet, most challenging planet, and sect light.
Read guide
Sect and dignity
- FundamentalsDay Chart in AstrologyWhat does it mean to have a day chart in astrology? Learn how diurnal sect shapes your benefic and malefic planets, sect light, and chart interpretation.
- FundamentalsNight Chart in AstrologyWhat does it mean to have a night chart in astrology? Learn how nocturnal sect shapes your benefic and malefic planets, sect light, and Saturn's role.
- FundamentalsBenefics and Malefics by SectLearn how sect ranks benefic and malefic planets in your chart. Understand the out-of-sect malefic, benefic of sect, and the four-tier planet hierarchy.
- FundamentalsSect Light in AstrologyLearn what a sect light is in astrology. Discover whether the Sun or Moon leads your chart and how it shapes your personality and life direction.
Rulership and bounds
- FundamentalsTriplicity Rulers in AstrologyTriplicity rulers assign each zodiac element (fire, earth, air, water) a set of ruling planets that differ by day and night. Learn the Dorothean, Ptolemaic, and Lilly triplicity tables, how sect affects which ruler is active, and how triplicity scoring works in the essential dignity system.
- FundamentalsMutual Reception in AstrologyMutual reception occurs when two planets occupy each other's domicile or exaltation signs, creating a reciprocal dignity relationship. Learn how mutual reception works, the difference between reception by domicile and by exaltation, and how it modifies chart interpretation.
- FundamentalsPlanetary BoundsComplete guide to planetary bounds (terms): the five unequal segments within each zodiac sign. Includes Egyptian and Ptolemaic tables, dignity scoring, and how medieval astrologers used the bounds lord.
- FundamentalsDecans in AstrologyDecans divide each zodiac sign into three 10-degree segments, creating 36 faces across the entire zodiac. Learn the Chaldean decan system, how decan rulers work, the difference between traditional and modern decan assignments, and how decans add precision to sign-based astrology.
Source doctrine
- FundamentalsAlmuten FigurisThe almuten figuris is a traditional dignity contest that compares the seven visible planets across key significator points. Learn how Augurine calculates it, how it differs from the chart ruler, and why it should be read as one testimony rather than a single ruler of the whole chart.
- Hellenistic foundationsThema MundiThe teaching chart behind rulerships, aspects, exaltations, joys, and sect logic.
Timing and forecasting
Time lords, returns, planetary cycles, eclipse families, retrograde states, and shorter timing references.
- Timing techniques
Annual Profections by House
The twelve profection years and the life topics each house activates.
Read guide - Timing Techniques
Solar Return Charts in Astrology
A solar return chart is cast for the moment the Sun returns to its natal degree each year. Learn how to read the Ascendant, angular planets, SR-to-natal aspects, and combine solar returns with profections and other timing techniques.
Read guide - Saturn cycle
Saturn Return
The Saturn return at 29 and 58, with sign and house meanings for the maturation cycle.
Read guide - Uranus cycle
Uranus Opposition
The midlife Uranus opposition and its sign meanings across the larger awakening cycle.
Read guide
Time lords
- Timing TechniquesLord of the YearThe lord of the year is your annual profection ruler. Learn how to find it using whole-sign houses, judge its condition, and combine it with transits for sharper yearly forecasts.
- Timing TechniquesMonthly ProfectionsMonthly profections divide the annual profection year into 12 sub-periods starting from your birthday. Learn how to track the monthly house shift and use it for day-to-day timing.
- Timing techniquesFirdaria: Planetary PeriodsMedieval planetary periods, node chapters, and planetary sub-periods across the 75-year sequence.
Returns
- Timing techniquesLunar ReturnMonthly return charts, house emphasis, angular planets, and the Moon's repeating personal cycle.
- Timing TechniquesSolar Return AscendantThe solar return Ascendant sets the tone for the year ahead. Learn how to read the rising sign of your birthday chart with sign-by-sign interpretations, assess its ruler, and combine solar returns with profections.
Cycles
- Timing techniquesProgressed MoonThe progressed Moon by house, sign, and phase as a slow emotional timing cycle.
- Eclipse timingSaros CycleEclipse families, repeating Saros series, and the long inheritance of eclipse patterns.
- Timing TechniquesThe Rose of VenusWhy Venus draws a five-petal rose across the zodiac every 8 years, what the pattern means in sacred geometry and Sumerian myth, and how the spiral of descent and return shows up in your own life.
- Saturn cycleSaturn SquareSaturn squares at turning points in the cycle, including sign and house interpretations.
- Saturn cycleSaturn OppositionThe Saturn opposition as a midpoint checkpoint in the larger Saturn cycle.
- Uranus cycleUranus ReturnThe Uranus return at roughly 84 and the long arc of individuation and reinvention.
- Uranus cycleUranus SquareUranus square phases at 21 and 63, with sign meanings for disruption and reorientation.
Shorter references
- Timing techniquesPlanetary Hours and DaysThe seven planetary days and hours, with individual pages for each planet's hour.
- Timing TechniquesVoid-of-Course MoonWhat the void-of-course Moon means, when it happens, and what traditional astrologers say you should avoid during it. Covers Lilly, Bonatti, and modern electional rules.
- Timing TechniquesRetrograde Shadow PeriodThe retrograde shadow period covers the degrees a planet will retrace during retrograde. Learn how pre-shadow and post-shadow work, what the three-pass cycle means, and how to track it without overreacting.
- Timing TechniquesStationary PlanetsWhen a planet stations retrograde or direct, it appears to stop moving. Learn what stationary planets mean, why they concentrate pressure on one degree, and how to read station periods in charts and transits.
Deep guide families
Saros series pages
Eclipse family pages for individual Saros series.
Saturn return placements
Sign and house pages for Saturn return timing.
Saturn square placements
Sign pages for Saturn square phases.
Saturn opposition placements
Sign pages for Saturn opposition phases.
Uranus return placements
Sign pages for the Uranus return cycle.
Uranus square placements
Sign pages for Uranus square phases.
Uranus opposition placements
Sign pages for the Uranus opposition cycle.
Progressed Moon placements
Sign and placement pages for progressed Moon timing.
Lunar return placements
House placement pages for monthly lunar return charts.
Profection house pages
Twelve annual profection house guides.
Planetary hour pages
Seven planet pages for planetary days and hours.
Relationships
Synastry, relationship chart types, marriage indicators, Vertex material, and relationship placement libraries.
- Fundamentals
How to Read a Synastry Chart
Synastry compares two birth charts to reveal the dynamics between two people. This guide covers the aspects that matter most, house overlays, and how to read the whole picture without getting lost in isolated aspects.
Read guide - Relationship astrology
Descendant Sign
The sign on your 7th house cusp and what it reveals about partnership patterns.
Read guide - Relationship astrology
Composite Chart Placements
Planet and house placements in the composite chart, with guidance for the relationship's shared field.
Read guide - Relationship astrology
Davison Chart Placements
Planet-by-planet interpretations for the Davison relationship chart and its real-time midpoint logic.
Read guide - Relationship astrology
Twin Flame Indicators
Synastry and composite patterns associated with intense mirroring, contact, and activation.
Read guide
Love placements
Relationship charts
- Relationship AstrologyWhat Is a Composite Chart?The composite chart midpoints each planet pair between two natal charts, creating a single chart for the relationship. Here is how the method works.
- Relationship AstrologyWhat Is a Davison Chart?The Davison chart casts a real natal chart for the midpoint in time and space between two births. Learn how it works and when to use it.
- Relationship AstrologyDavison Chart vs Composite ChartDavison and composite charts both create a single chart for a relationship but use different methods. Here is when to use each and how they compare.
- Relationship AstrologyHow to Read a Composite ChartA step-by-step guide to reading a composite chart: luminaries, angular planets, house emphasis, aspect orbs, and common interpretation mistakes.
- Relationship AstrologyHow to Read a Davison ChartHow to read a Davison relationship chart step by step: Ascendant, Sun, Moon, house emphasis, exact aspects, and how to time events with transits.
- Relationship AstrologyBest Composite Chart AspectsThe composite aspects that appear most often in strong relationships: luminary harmony, Venus-Jupiter joy, Saturn stability, and what to watch for.
- Relationship AstrologyBest Davison Chart AspectsThe Davison aspects that show up in strong relationships: luminary harmonies, angular benefics, Saturn trines, and the outer planet contacts that add depth.
Vertex and marriage indicators
- Relationship astrologyVertex in AstrologyA calculated western point for encounter symbolism, sign meanings, and synastry context.
- Relationship AstrologyComposite Chart Marriage IndicatorsComposite chart patterns astrologers often review for long-term commitment questions, including Saturn contacts, house placements, and supporting aspects.
- Relationship AstrologyDavison Chart Marriage IndicatorsThe Davison chart reads like a natal chart for the relationship. Here are the angular, Saturn, and Venus patterns astrologers review for commitment questions.
Deep guide families
Davison placement guides
Planet and house placement pages for the Davison relationship chart.
Composite placement guides
Planet and house placement pages for the composite relationship chart.
Vertex pages
Sign pages plus synastry and anti-Vertex guides.
Descendant sign pages
Twelve Ascendant and Descendant axis guides.
Venus sign pages
Twelve Venus sign guides for love style, attraction, dignity, and growth edges.
Mars sign pages
Twelve Mars sign guides for drive, desire, dignity, and growth edges.
Twin flame category pages
Category pages for the twin flame relationship guide family.
Aspects, harmonics, and Uranian methods
Geometry-heavy techniques: aspect patterns, harmonics, midpoints, the 90-Degree Dial, and planetary pictures.
- Aspect patterns
Aspect Patterns in Astrology
Yods, Grand Trines, Grand Crosses, T-Squares, Mystic Rectangles, and other chart configurations.
Read guide - Uranian Astrology
90-Degree Dial
The 90-degree dial folds the zodiac into a quarter of the circle so conjunctions, squares, and oppositions line up visually. Learn how the folding works, how to read midpoint clusters, and when to use the dial vs. a chart wheel.
Read guide - Uranian Astrology
Planetary Pictures
How to read planetary pictures (A/B = C), the core interpretive method in Uranian astrology. Witte and Lefeldt's Rules for Planetary Pictures, Ebertin's COSI keywords, the eight Trans-Neptunian Points, and a fully worked example.
Read guide
Harmonics
- HarmonicsHarmonic ChartsJohn Addey's harmonic theory treats the birth chart as a symbolic signal that can be inspected by number. Each harmonic number turns one aspect family into conjunctions: the 5th surfaces quintile patterns, the 9th surfaces noviles.
- HarmonicsThe Novile & 9th HarmonicThe novile (40°) is the aspect of the 9th harmonic, often read for joy, integration, and meaning in modern harmonic astrology. This guide covers the aspect itself, its comparison with Vedic Navamsa, and how to read the Western 9th harmonic chart.
- HarmonicsAge HarmonicsEmerging from the harmonic movement in the early 1980s, the age harmonic generates a unique chart each birthday by using your current age as the multiplier. Unlike solar returns and profections, which recycle positions on a fixed cycle, every age harmonic is structurally new, making it a distinctive timing lens.
Uranian methods
- Uranian AstrologyMidpoint AstrologyMidpoint astrology studies the halfway point between two chart factors. Learn what midpoints represent, how direct and indirect midpoints differ, and how to read them using the 90-degree dial.
- Uranian AstrologyAriespointThe Ariespoint is the cardinal axis at 0 degrees Aries, Cancer, Libra, and Capricorn. In Uranian astrology, it marks where personal factors connect with the public world. Learn how to find it on the 90-degree dial.
Deep guide families
Aspect pattern variants
Pattern hubs, variant pages, and stellium sign and house guides for major chart configurations.
Lots and Arabic parts
Fortune, Spirit, Eros, and the broader Arabic Parts framework.
Foundation lots
Deep guide families
Part of Fortune placements
Sign and house placement pages owned by the Lot of Fortune guide family.
Lot of Spirit placements
Sign and house pages for Spirit, purpose, and will.
Lot of Eros placements
Sign and house pages for desire, love, and creative passion.
Asteroids and named points
Asteroid libraries, named point hubs, love asteroids, vocation asteroids, and mythology clusters.
- Asteroid astrology
Asteroid Astrology Guide
The master guide to reading asteroids in natal charts, from the Big Four to thematic asteroid sets.
Read guide - Asteroid astrology
Important Asteroids in Astrology
A tiered library of the asteroids covered here, with links to full guides and calculators.
Read guide
Asteroid hubs
- Thematic hubsLove Asteroids in AstrologyEros, Psyche, Aphrodite, and Amor as four different frequencies of love and attraction.
- Thematic hubsSpiritual Asteroids GuideVesta, Isis, Sophia, Hekate, Persephone, Urania, and asteroid Lilith as a sacred cluster.
- Thematic hubsFame Asteroids in AstrologyFama, Apollo, Achilles, Niobe, Industria, and Talent as a reputation and visibility cluster.
- Thematic hubsThe Fates AsteroidsKlotho, Lachesis, and Atropos as mythic timing and life-thread prompts in the chart.
- Zodiac mythologyZodiac Gods and GoddessesThe divine archetypes of each zodiac sign across Greek, Roman, and Egyptian traditions.
The Big Four
- The Big FourVesta Asteroid GuideFocus, devotion, and the inner flame by sign and house.
- The Big FourPallas Asteroid GuidePattern recognition, strategy, intelligence, and the weaving mind by sign and house.
- The Big FourJuno Asteroid GuideCommitted partnership needs, long-bond architecture, and Juno in signs, houses, and synastry.
- The Big FourCeres Asteroid GuideHow you nurture, receive care, and process loss, with sign and house interpretations.
Love and vocation
- Love asteroidsEros Asteroid GuideThe specific voltage that wakes attention, with sign, house, and synastry meanings.
- Love asteroidsPsyche Asteroid GuideIntimacy, recognition, mythology, and synastry prompts by sign and house.
- Love asteroidsAphrodite Asteroid GuideFelt beauty, attraction, and the aesthetic signal that differs from Venus.
- Mythological asteroidsApollo Asteroid GuideClarity, focused craft, articulate light, and symbolic direction by sign and house.
- Love asteroidsAmor Asteroid GuideTenderness, devotion, and the kind of love that protects without dissolving the self.
- Reputation asteroidsFama Asteroid GuideHow your name travels, what you are remembered for, and how reputation attaches itself.
- Vocational asteroidsTalent Asteroid GuideThe gift that arrives already formed, read alongside Apollo and Saturn.
- Vocational asteroidsDestinn Asteroid GuideThe named-role prompt, read carefully for vocation questions and public emergence.
- Relationship asteroidsUnion Asteroid GuideThe bond as its own entity and the shape a partnership tends to take once joined.
- Vocational asteroidsIndustria Asteroid GuideThe daily engine of productive labor, distinct from Saturn discipline and Vesta focus.
Named points
- Named pointsBlack Moon LilithLilith variants, sign meanings, house meanings, and the symbolism of refusal and autonomy.
- Named pointsWhite Moon SelenaA symbolic counterpoint to Black Moon Lilith, with variants, sign meanings, and house meanings.
- Lunar nodesNorth Node in AstrologyThe North Node and South Node axis as a growth direction, with all 12 nodal sign pairings.
- Lunar nodesSouth Node in AstrologyThe South Node as the familiar pattern and past-life comfort zone, with all 12 nodal sign pairings.
Deep guide families
Lilith placements
Sign and house pages for Black Moon Lilith.
White Moon Selena placements
Sign and house pages for White Moon Selena.
North Node sign pages
Twelve nodal axis guides pairing each North Node sign with its South Node.
South Node sign pages
Twelve nodal axis guides pairing each South Node sign with its North Node.
Vesta sign pages
Twelve sign pages for Vesta.
Pallas sign pages
Twelve sign pages for Pallas.
Juno sign pages
Twelve sign pages for Juno.
Ceres sign pages
Twelve sign pages for Ceres.
Eros sign pages
Twelve sign pages for asteroid Eros.
Psyche sign pages
Twelve sign pages for Psyche.
Sky, location, zodiac systems, and declination
Location, fixed stars, zodiac systems, ancient constellations, declination, and Moon phase foundations.
- Fundamentals
Astrocartography
Learn how astrocartography maps planetary influences to locations around the world, and how to use it for relocation, travel, and life decisions.
Read guide - Zodiac systems
Sidereal Astrology
The fixed-star zodiac, ayanamsa logic, and the debate between sidereal and tropical systems.
Read guide - Sky coordinates
Declination and Out-of-Bounds Planets
Out-of-bounds planets, parallel aspects, contraparallels, and the lunar standstill cycle.
Read guide
Location, stars, and Moon phase
- FundamentalsFixed Stars in AstrologyLearn how fixed stars add symbolic layers to natal chart interpretation. Covers the 4 Royal Stars, 15 Behenian stars, conjunctions, parans, and precession.
- Chart anglesEast Point in AstrologyThe Equatorial Ascendant, how it differs from the Ascendant, and why latitude matters.
- FundamentalsThe Eight Moon PhasesThe lunar cycle divides into eight distinct phases, from New Moon to Balsamic. This guide explains what each phase means in transit and in your natal chart, and how astrologers use the Moon's cycle for timing.
Deep guide families
Sidereal Sun sign pages
Twelve sign pages for Lahiri sidereal Sun dates.
Babylonian constellation pages
Twelve constellation pages tied to Babylonian astrology.
Declination guides
Out-of-bounds planets, parallel aspects, and lunar standstill pages.
How to use these guides
The Learn library separates chart mechanics from interpretation. Use calculations, definitions, and source notes as reference material; use sign, house, timing, relationship, and asteroid language as symbolic prompts rather than proof of health, destiny, compatibility, vocation, or fixed life outcomes.
Need a definition?
The glossary is better for quick terms. The Learn hub is for full guides and connected reading paths.
Put the concepts into practice
Most guide families connect to a free calculator, so users can move from an idea to their own chart without a signup wall.
Put these concepts into practice
Every guide is paired with a free interactive calculator when a calculation makes sense. No signup required.