Every calculator, one astronomy engine
All readings share the same sub-arcsecond ephemeris and the same promise: free, no signup, birth data computed locally in your browser. Browse by category — more tools are added in batches as each one is finished to our methodology standard.
Natal & Self
82 liveNatal Birth Chart
Planets, houses, aspects, dignities and your Big Three — cast in one click.
Open calculatorSun, Moon & Rising
The lightweight Big Three reading when you just want the essentials.
Open calculatorTraditional Chart
Sect, essential dignities, domicile and exaltation — the Hellenistic toolkit.
Open calculatorVocation Analysis
MC, its ruler, and the Saturn/Jupiter/Mercury career synthesis.
Open calculatorFinance & Wealth Blueprint
Second, sixth, eighth and tenth houses woven with Venus and Jupiter.
Open calculatorVitality & Wellbeing Blueprint
The Sun, the Moon and the first/sixth houses — your energy blueprint.
Open calculatorBirth Time Rectification
Narrow an unknown birth hour by watching which Ascendant, MC and houses the clock rotates through across your day.
Open calculatorChart Patterns & Shapes
Your wheel shape, hemisphere split and quadrant balance — the chart's big-picture geometry.
Open calculatorPlanetary Condition
How close each planet sits to your Sun: cazimi, combust, under the beams, or free.
Open calculatorChart Ruler & Dispositor Tree
Your ruling planet and the chain of command every planet defers to.
Open calculatorPersona Chart
Meet each planet as its own sub-personality — sign, house, dignity and aspects.
Open calculatorMajor Aspect Configurations
The closed shapes in your chart — stelliums, T-squares, grand trines, yods and more.
Open calculatorChild Astrology
A gentle temperament profile for a child — cores, elements, learning style and dominant planet.
Open calculatorFixed Stars & Royal Stars
Which bright fixed stars — Regulus, Antares, Sirius and more — sat conjunct your natal planets.
Open calculatorIntelligence & Age Point (Huber)
The Huber-method 72-year Age Point with your planetary intelligences and their dignities.
Open calculatorAsteroids
Ceres, Pallas, Juno, Vesta & Chiron placed by real Kepler math and every aspect they make to your chart.
Open calculatorDeclination Calculator
Every planet's north-south declination, Out-of-Bounds flags past ±23.4°, and parallel & contra-parallel contacts.
Open calculatorParallel Aspects
The hidden vertical aspect layer: parallel and contra-parallel bonds between your planets, within a chosen orb.
Open calculatorLot Activation Map
See which of your lots the chart really lights up: every lot tested against the angles and visible planets, ranked by how strongly aspected.
Open calculatorLot of Fortune Calculator
Cast your Lot of Fortune — the Hellenistic part of the body and material life — with its exact degree, sign, house, ruling lord and activating aspects.
Open calculatorLot of Spirit Calculator
Cast your Lot of Spirit, the Daimon of purpose and action, with its degree, sign, house, lord and the natal points that light it up.
Open calculatorLot of Eros Calculator
Cast your Lot of Eros, the Hellenistic part of love and desire, with its degree, sign, house, lord and activating aspects — both ancient formulas disclosed.
Open calculatorLot of Necessity Calculator
Cast your Lot of Necessity (Ananke), the part of fate and compulsion, with its degree, sign, house, lord and the natal aspects that activate it.
Open calculatorImum Coeli (IC) Calculator
Find your Imum Coeli, the nadir and fourth-house cusp, with its exact degree, sign, house and any planets conjunct it.
Open calculatorEast Point Calculator
Find your East Point, the horizon degree rising at birth, with the opposing West Point and which planets rise east or set west.
Open calculatorAnaretic Degree Calculator
Find every planet and point at the critical 29th degree in your natal chart, with its sign and house, and read what the final degree means.
Open calculatorDecan Calculator
Find the decan and face lord of every placement in your chart, using the traditional Hellenistic rulership of each ten-degree decanate.
Open calculatorEmpty Houses Calculator
Find which houses hold no planet and read each one through its ruling planet and where that lord actually sits.
Open calculatorIntercepted Signs Calculator
Find which zodiac signs are intercepted, held wholly inside one house without touching a cusp, and read what each one means.
Open calculatorDerivative Houses Calculator
Rotate your house wheel to any planet, angle or lot and re-count all twelve houses from it, seeing where every body lands in the derived frame.
Open calculatorHouse System Comparison Calculator
Compare Whole-sign, Equal, Porphyry, Regiomontanus and Campanus houses side by side, and see exactly which planets change house.
Open calculatorMutual Reception Calculator
Find every pair of planets that occupy each other's ruling or exaltation sign, so they can share strength.
Open calculatorAversion Calculator
Find the hard-by-sign pairs that cast no Ptolemaic ray, so the two planets cannot see each other.
Open calculatorPlanetary Joys Calculator
See which traditional planets occupy their classical joy house on the whole-sign frame counted from your Ascendant.
Open calculatorOriental & Occidental Planets Calculator
Split your chart into planets that rose before the Sun (oriental) and those that rose after it (occidental).
Open calculatorWitnessing Calculator
See which planets witness your Ascendant, Midheaven, Sun and Moon by a trine or sextile from their signs.
Open calculatorDoryphory Calculator
Find the spear-bearer planets: the body nearest ahead of, and the one nearest behind, your Ascendant and Sun.
Open calculatorOvercoming Calculator
Split the squares by sign into direction: which planets paroxma (ahead) or epiloxma (behind) your Ascendant, Sun and Moon.
Open calculatorBonification & Maltreatment Calculator
See whether Jupiter or Venus bless your angles and luminaries by soft ray, or Saturn and Mars afflict them by hard ray.
Open calculatorBesieged Planet Calculator
Find any planet hemmed in between Mars and Saturn in the signs immediately before and after its own.
Open calculatorAntiscia Calculator
Uncover hidden conjunctions: bodies that mirror one another, or your angles and luminaries, across the Cancer-Capricorn axis.
Open calculatorTriplicity Ruler Calculator
Find the three Dorothean element lords of your Ascendant, Midheaven, Sun, Moon and Fortune, ordered by your chart's day or night sect.
Open calculatorEgyptian Bounds Calculator
Map the bound (term) lord of your exact degrees using the Egyptian table of Dorotheus, pinned by its traditional lifespan sums.
Open calculatorAlmuten of the Figure Calculator
Tally domicile, exaltation, triplicity, bound and face points at your five chart anchors to find the most dominant classical planet.
Open calculatorMaster of the Nativity Calculator
Run the traditional cross of masters: six nominated lords judged by domicile, angularity and dignity to elect the planet governing your life.
Open calculatorPrenatal Syzygy Calculator
Find the last new or full moon before your birth, its exact degree, sign and lord: the Hellenistic opening condition of the life.
Open calculatorHayz Calculator
See which classical planets sit in their hayz, the hemisphere proper to their sect, judged by true horizon altitude rather than houses.
Open calculatorMonomoiria Calculator
Find the monomoiria, the planetary lord of each exact degree your bodies occupy, from the continuous Chaldean degree scheme on Hellenistic horoscopes.
Open calculatorHyleg Calculator
Discover your hyleg, the planet with the greatest essential dignity across the five aphetic places: Sun, Moon, Ascendant, Fortune and the prenatal syzygy.
Open calculatorAlcocoden Calculator
Draw the alcocoden, the lord of your hyleg's sign, and the classical years it grants by angularity, halved when retrograde or in fall.
Open calculatorMelothesia Calculator
Place every planet, the Ascendant, the Midheaven and the Lot of Fortune on the medieval Man of Signs and see which body part each one rules.
Open calculatorKite Pattern Calculator
Find the kites in your chart — a grand trine with a flyer: one planet opposing the apex and sextiling the other two.
Open calculatorCradle Pattern Calculator
Find the cradles in your chart — six bodies closing two trines, three sextiles and one opposition into a rocking basin.
Open calculatorThor's Hammer Calculator
Find Thor's hammers in your chart — the three-body figure of one square and two sesquiquadrates, apex included.
Open calculatorMultiple Planet Square Calculator
Find the planets in your chart that take a square from two or more bodies at once — focal pressure, not a closed shape.
Open calculatorMinor Grand Trine Calculator
Find the minor grand trines in your chart — three bodies joined by one trine and two sextiles, the small flowing triangle.
Open calculatorGolden Yod Calculator
Find the golden yods in your chart — the pentagon triple of one quintile and two biquintiles, apex and all, at 2° orbs.
Open calculatorGrand Sextile Calculator
Test the rarest standard figure — six bodies at the points of a hexagon, all fifteen links closed: the Star of David.
Open calculatorPartile Aspects Calculator
Which of your aspects sit on the same degree in both signs? The classical partile test, graded perfect to near, free.
Open calculatorMinor Aspects Calculator
Semisextile, semisquare, quintile, quindecile, sesquiquadrate and biquintile in your chart — tested at tight published orbs.
Open calculatorPsyche Asteroid
Place asteroid (16) Psyche — the soul and its values — in your natal chart with real JPL ephemeris math, plus every aspect it makes.
Open calculatorAmor Asteroid
Place asteroid (1221) Amor — steady, protective love — in your natal chart with real JPL ephemeris math, plus every aspect it makes.
Open calculatorApollonis Asteroid
Place asteroid (1366) Apollonis — clarity and healing light — in your natal chart with real JPL ephemeris math, plus every aspect it makes.
Open calculatorAphrodite Asteroid
Place asteroid (1388) Aphrodite — love, beauty and magnetic value — in your natal chart with real JPL ephemeris math, plus every aspect it makes.
Open calculatorUnion Asteroid
Place asteroid (1585) Union — the deliberate joining of two paths — in your natal chart with real JPL ephemeris math, plus its aspects.
Open calculatorKarma Asteroid
Place asteroid (3811) Karma — action and return — in your natal chart with verified JPL ephemeris math, plus every aspect it makes.
Open calculatorFama Asteroid
Place asteroid (408) Fama — repute and rumour — in your natal chart with real JPL ephemeris math, plus every aspect it makes.
Open calculatorAura Asteroid
Place asteroid (1488) Aura — the breeze and the glow around a thing — in your natal chart with real JPL math, plus its aspects.
Open calculatorLucifer Asteroid
Place asteroid (1930) Lucifer — the morning light and the fall — in your natal chart with real JPL ephemeris math, plus its aspects.
Open calculatorBriede Asteroid
Place asteroid (19029) Briede — quiet, durable work — in your natal chart with real JPL ephemeris math, plus every aspect it makes.
Open calculatorHygiea Asteroid
Place asteroid (10) Hygiea — health, regimen and prevention — in your natal chart with real JPL ephemeris math, plus its aspects.
Open calculatorSappho Asteroid
Place asteroid (80) Sappho — the lyric voice and sung desire — in your natal chart with real JPL math, plus every aspect it makes.
Open calculatorNessus Asteroid
Place the centaur Nessus (7066) — the poisoned gift — in your natal chart with real JPL ephemeris math, plus every aspect it makes.
Open calculatorPholus Asteroid
Place the centaur Pholus (5145) — the torch that exposes — in your natal chart with real JPL ephemeris math, plus its aspects.
Open calculatorChariklo Asteroid
Place the ringed minor planet Chariklo (10199) — grace and its retinue — in your natal chart with real JPL math, plus its aspects.
Open calculatorSedna Asteroid
Place the distant world Sedna (90377) — provision from the cold far places — in your natal chart with real JPL math, plus its aspects.
Open calculatorQuaoar Asteroid
Place the trans-Neptunian object Quaoar (50000) — the creator's arrow — in your natal chart with real JPL ephemeris math, plus its aspects.
Open calculatorMakemake Dwarf Planet
Place the dwarf planet Makemake (136472) — the maker and the risen sun — in your natal chart with real JPL ephemeris math, plus its aspects.
Open calculatorHaumea Dwarf Planet
Place the dwarf planet Haumea (136108) — birth, rebirth and rapid becoming — in your natal chart with real JPL ephemeris math.
Open calculatorVaruna Asteroid
Place the Kuiper-belt object Varuna (20000) — cosmic order and the binding sky — in your natal chart with real JPL math, plus its aspects.
Open calculatorGonggong Asteroid
Place the distant world Gonggong (225088) — the flood and the slow deep breakage — in your natal chart with real JPL math.
Open calculatorOrcus Asteroid
Place the plutino Orcus (90482) — the oath, its binding and its penalty — in your natal chart with real JPL ephemeris math, plus its aspects.
Open calculatorSoul & Esoteric
11 liveKarma & Life Path
The lunar nodes, Saturn and Lilith — your south-to-north-node journey.
Open calculatorHeliocentric Chart
The same sky seen from the Sun — Earth becomes just another planet.
Open calculatorWestern Sidereal Chart
The zodiac of the stars — tropical longitudes rebased with the ayanamsa.
Open calculatorHarmonic Chart
Multiply every position by N and re-read the chart's hidden music.
Open calculatorDraconic Soul Blueprint
Rotate the zodiac so the North Node starts at 0° Aries — the older chart.
Open calculatorHidden Depths Blueprint
The 8th and 12th houses, Pluto, Neptune and the South Node — your chart's unseen layers.
Open calculatorPlanetary Days & Hours
The planetary ruler of any day and hour, from real sunrise and sunset at your location.
Open calculatorEsoteric & Soul Report
The lunar Nodes, Lilith, the Part of Fortune and the transpersonal planets — the chart's quieter coordinates.
Open calculatorGalactic & Deep Space Chart
Your planets rotated into the Milky Way's own coordinates — galactic latitude, centre and poles.
Open calculatorUranian Chart + 90° Dial
Hamburg-school chart: eight working points folded onto a 90° dial with every tight midpoint picture listed.
Open calculatorWhite Moon (Selena)
Place the White Moon — the mean lunar perigee, exactly opposite Black Moon Lilith — in your natal chart, with the whole apsidal axis and its aspects.
Open calculatorRelationships
16 liveSynastry Compatibility
Cross-aspects and house overlays between two charts, with a banded score.
Open calculatorComposite & Davison
The relationship's own chart, built from your midpoint date, time and place.
Open calculatorRelational Blueprint
Your 7th house, Venus and Mars — the relationship template you bring to any pairing.
Open calculatorDraconic Synastry
Compare two charts rebased onto the Draconic zodiac — the quieter soul-level overlay.
Open calculatorSynastry Transit
The live sky read on both partners' charts at once — the personal weather each of you is bringing.
Open calculatorProgressed Synastry
Each partner's chart advanced with time, aspecting the other's natal chart — how the pairing evolves.
Open calculatorUranian Synastry
Two charts folded on a shared 90° dial — cross-midpoint pictures replace classical aspects as the pairing's signature.
Open calculatorDeclination Synastry
The vertical bond layer between two people: cross-chart parallels and contra-parallels on the declination axis.
Open calculatorSun-Sign Compatibility Calculator
Pick two zodiac Sun signs and get a transparent compatibility read — the aspect their signs form plus element, mode and polarity fit, with a full written page for all 78 pairings.
Open calculatorSynastry Moon Phase Calculator
Turn the arc between two Moons into a lunar phase — the emotional rhythm one partner sets for the other, read in both directions.
Open calculatorSynastry Aspect Grid
See the whole weave at once: every aspect between one person's planets, angles and points and the other's, as a full A×B matrix.
Open calculatorSun–Moon Midpoint Calculator
Find the point halfway between each person's Sun and Moon, the aspect those midpoints form, and the coupling midpoint between them.
Open calculatorCoalescent Chart (Dual-Native Overlay)
Hold one person's house frame still and drop every one of the other's planets, angles and points into it — and the reverse.
Open calculatorKarmic Synastry Calculator
A labelled checklist of the contacts tradition calls karmic — Lunar Node, Vertex, Saturn and 8th/12th-house overlays between two charts.
Open calculatorSoulmate Synastry Calculator
The same two charts read through a lighter lens: personal-planet rapport, Venus and Moon contacts, the Vertex, and 5th/7th/11th-house overlays.
Open calculatorTwin Flame Checklist
A transparent, weighted checklist of the contacts twin-flame lore points at — printed with its weights, and honest that no score can certify one.
Open calculatorTiming & Cycles
17 liveTransits & Progressions
Where the sky is now and what it's activating in your natal chart.
Open calculatorSolar Return
Your year-ahead chart at the Sun's return, with Lord-of-the-Year timing.
Open calculatorProgressions & Timeline
Your progressed chart and the slow inner clock of the coming decades.
Open calculatorZodiacal Releasing
Classical time-lord chapters from the Parts — which era of life you're in.
Open calculatorTime Lords & Profections
Annual profections: the ruling sign, house and planet for every year of life.
Open calculatorSaturn Return
Exact dates of your first, second and third Saturn returns — and their houses.
Open calculatorLunar Return
The Moon's monthly reset — a small chart each month for emotional weather.
Open calculatorSolar Arc & Timeline
Every position advanced by the Sun's arc — one degree, one year.
Open calculatorLife Timeline Blueprint
Every outer-planet return — Jupiter through Pluto — merged into one age-sorted timeline across your life.
Open calculatorMidlife Transition Blueprint
Your Saturn returns and every Uranus-opposition pass, dated against your own chart.
Open calculatorQuarter-Life Blueprint
Your road to the first Saturn return, with the Jupiter returns, current profection year and live transits.
Open calculatorThird Act / Later Life Blueprint
Every slow-planet return from the second Saturn return onward — the dated rhythm of life's last act.
Open calculatorPrimary Directions
The oldest timing technique: equatorial arcs keyed Ptolemaic or Naibod, direct and converse, bucketed by decade.
Open calculatorUranian Midpoint Transits
Today's (or any instant's) transiting sky laid onto your natal 90° dial — single conjuncts and transit-pair pictures.
Open calculatorLunar Standstill
The Moon's 18.6-year north-south wave: when its monthly swing crests to a major or narrows to a minor standstill.
Open calculatorFirdaria Calculator
The seven planetary chapters of your life, from the sect light, with every sub-period dated.
Open calculatorAge Harmonic
Your birth chart multiplied by the years you have lived — a new chart every birthday.
Open calculatorLocations & Relocation
6 liveAstrocartography
Planetary lines drawn on the world map — where the sky supports you.
Open calculatorBest Astrocartography Locations
Rank cities and places by which planetary lines land closest to them.
Open calculatorRelocation Chart
Re-cast your natal houses for a new address — same planets, new lens.
Open calculatorLocal Space Map
Compass directions from your doorstep — where planets actually rose.
Open calculatorRelationship Astrocartography
Where in the world does the composite chart of a couple have support — forty lines drawn from the paired midpoints.
Open calculatorDynamic Astrocartography
Cyclocartography — planetary lines re-solved at every five-year progressed age, colour-coded 0→90.
Open calculatorHorary & Electional
2 liveCalendars & Reference
21 liveMercury Retrograde
Exact retrograde windows through 2045, and which house they hit for you.
Open calculatorMoon Phases Calendar
New, full and quarter lunations for any year — precomputed and precise.
Open calculatorEclipse Calendar
Every solar and lunar eclipse with exact times, signs and visibility.
Open calculatorVenus Retrograde & Love
The 18-month Venus cycle in love and money — windows and year pages.
Open calculatorMars Retrograde Calendar
Mars's ~2-year backward season — exact windows, durations and the years it skips.
Open calculatorPlanets in Retrograde
What's retrograde right now, across every planet at once.
Open calculatorTransit Calendar
A chronological sky-event timeline — every ingress, station and lunation for a year.
Open calculatorVoid-of-Course Moon
Whether the Moon is void of course right now — its last aspect and next sign ingress, live.
Open calculatorOut of Bounds
Exact dates each planet drifts past ±23.4° declination and leaves the zodiac's stage, for any year to 2045.
Open calculatorDeclination Graph
Every planet's north-south declination traced as a wavy line across a year, against the shaded ±23.4° Out-of-Bounds band.
Open calculatorArabic Parts Calculator
Cast every classical Hellenistic lot at once — Fortune, Spirit, Eros, Necessity and the family lots — with sign, house and lord.
Open calculatorTwelfth Parts Calculator
The Hellenistic dodecatemos: the twelfth-part of the luminaries, angles and lots, with each point's sign, house, lord, occupants and aspects.
Open calculatorVenus Synodic Cycle
Every Venus conjunction, elongation, dichotomy and station — plus the pentagram and the rare transits.
Open calculatorHeliacal Rising
The first pre-dawn appearance of Sirius, Suhail or a planet over your own horizon, by arc of vision.
Open calculatorVertex & Anti-Vertex Calculator
Find your Vertex and Anti-Vertex — the exact points where the ecliptic crosses the prime vertical — with sign, house and aspects.
Open calculatorNakshatra Calculator
Find your birth Moon's nakshatra and pada — the 27 lunar stations of the Vedic sidereal zodiac, with deity, symbol and Vimshottari lord.
Open calculatorLunar Mansion Calculator
Find your Moon's mansion among the 28 manāzil al-qamar of the Arabic tradition, with name, meaning, determinant star and theme.
Open calculatorSabian Symbol Calculator
Find the Sabian symbols for your Sun, Moon and Ascendant — one image for each of the 360 degrees of the zodiac, from our own authored symbol set.
Open calculatorOphiuchus / Real Constellation Calculator
Discover which of the thirteen real constellations the Sun, Moon and Ascendant actually occupy — IAU constellation borders, precession-corrected to your birth date.
Open calculatorSaros Cycle Calculator
Find the numbered Saros series of the solar eclipse nearest your birth — family of 70+ eclipses repeating every 18 years, from our own NASA-verified catalog of all 190 series.
Open calculatorDegree Theory Calculator
Read the critical degrees of your nativity — every placement's degree number, twelve-step archetype cycle, decan face ruler, and its inceptive, critical or anaretic flags.
Open calculator