Oleg Kopachovets
Founder & CEO
Oleg Kopachovets founded Astrolium in 2026 after building astrology-api.io in 2023, the Swiss Ephemeris calculation engine that powers Astrolium and 400+ astrology applications worldwide. Programming since age 9 with a background in space exploration and planetary mechanics, he is also the founder of ProCoders (200+ engineers, 500+ projects shipped over a decade). Work is split between Lisbon and Tallinn (ProCoders OÜ).
- Founder of Astrolium and astrology-api.io (powering 400+ apps)
- Founder of ProCoders — 200+ engineers, 500+ projects shipped
- Background in space exploration and planetary mechanics
- Author and curator of the Astrolium guide and calculator library
Publications
Articles by Oleg Kopachovets (48)
Guide
AI in astrology, the honest 2026 stateAstrolium's honest 2026 take on AI for astrology: Claude, GPT, Gemini compared. What AI does well, what it fails at, and how to us
Guide
Annual profections, the practitioner guideAstrolium's annual profections guide: age mod 12 plus 1, the time-lord, sign-by-sign house themes, and how transits stack on the a
Guide
Arabic parts, the hermetic lotsAstrolium's arabic parts guide for astrologers: the 7 hermetic lots (Fortune, Spirit, Eros, Necessity, Courage, Victory, Nemesis),
Guide
The astrocartography hub for working astrologersAstrolium's practitioner hub for astrocartography. Planetary lines, MC IC AC DC angles, combination lines, parans, and how to run
Guide
Jupiter line astrocartography for working practitionersAstrolium's practitioner guide to the Jupiter line in astrocartography. MC IC AC DC angles, visit vs relocate, combinations, and s
Guide
Parans in astrocartography: the latitude-based reading layerAstrolium's guide to parans in astrocartography. Bernadette Brady's framework, 1-degree orb, latitude bands, and how practitioners
Guide
Pluto line astrocartography for working practitionersAstrolium's practitioner guide to the Pluto line in astrocartography. MC IC AC DC angles, visit vs relocate, combinations, and ses
Guide
Saturn line astrocartography for working practitionersAstrolium's practitioner guide to the Saturn line in astrocartography. MC IC AC DC angles, visit vs relocate, combinations, and se
Guide
Venus line astrocartography for working practitionersAstrolium's practitioner guide to the Venus line in astrocartography. MC IC AC DC angles, visit vs relocate, combinations, and ses
Guide
Astrocartography, line by lineAstrolium's astrocartography guide: Jim Lewis's relocation method, MC IC ASC DSC lines, parans, crossings, and how to use a map to
Guide
Composite vs Davison, when each one is rightAstrolium's composite vs Davison guide: midpoint composite averages longitudes, Davison casts the chart for the midpoint birth mom
Guide
Electional Astrology: A Practitioner's MethodAstrolium's practitioner guide to electional astrology: methodology, considerations before judgment, planet elevation, and how to
Guide
Evolutionary Astrology: the Jeffrey Wolf Green methodAstrolium's guide to Evolutionary Astrology: soul evolution through Pluto and the lunar nodes, the Jeffrey Wolf Green and Steven F
Guide
Fixed Stars in Astrology: The Practitioner ReferenceAstrolium's guide to fixed stars in astrology: Behenian magical stars, Royal stars of Persia, Algol, Regulus, Antares, Spica, and
Guide
What is Hellenistic astrologyAstrolium's Hellenistic astrology guide: Greek roots, the 1990s Schmidt and Hand revival, time-lords, lots, sect, and why the craf
Guide
Horary astrology, the question chartAstrolium's horary astrology guide: Lilly's 7 considerations before judgement, significator routing, perfection, frustration, with
Guide
Astrology house systems, compared by a working astrologerAstrolium's house system guide for astrologers: Placidus vs whole sign, Porphyry, Regiomontanus, Koch, Campanus, Equal, Alcabitius
Guide
How to read a natal chartAstrolium's natal chart guide: planets, signs, houses, aspects, the 6-step reading order, common patterns, and the 4 schools from
Guide
Human design for astrologersAstrolium's human design guide for astrologers: five Types, strategies, nine centers, inner authority, and where it overlaps and d
Guide
Mundane Astrology: Charts of Nations and ErasAstrolium's deep guide to mundane astrology: ingress charts, eclipses on world events, planetary cycles in collective history, and
Guide
Numerology, the core numbersAstrolium's numerology guide: reduce your birth date and name into Life Path, Destiny, and Soul Urge numbers using the Pythagorean
Guide
How to calculate profections, step by stepHow to calculate profections by hand and in Astrolium: age mod 12 plus 1, locate the time-lord, read the year-ruler, and stack wit
Guide
Psychological astrology: Liz Greene and the Jungian traditionAstrolium's guide to psychological astrology: the Jungian framework from Liz Greene and Howard Sasportas, depth psychology, archet
Guide
Saturn-Neptune Conjunction 2026: Meaning, Dates, Chart ImpactSaturn meets Neptune at 0 Aries in 2026 for the first time since 1989. Dates, historical parallels, and chart impact for natal and
Guide
The Saturn return, the practitioner guideAstrolium's Saturn return guide for astrologers: 29.46-year cycle, triple-pass timing, first at 28-30, second at 57-59, third at 8
Guide
Secondary progressions, the slow inner clockAstrolium's secondary progressions guide: day-for-a-year method, the progressed Moon's 27.5-year cycle, and how to read manifestat
Guide
The solar return, the practitioner guideAstrolium's solar return guide: Mary Fortier Shea's method, precession-corrected returns, angles to the natal, and what the year i
Guide
How to read a synastry chart, step by stepAstrolium's practitioner reading order for synastry: Sun, Moon, Ascendant first, then inner-planet aspects, outers, house overlays
Guide
Synastry, the practitioner guideAstrolium's synastry guide for astrologers: inter-aspects at 3-5 degree orbs, house overlays, composite confirmation, and the 4 in
Guide
Uranian astrology: the Hamburg School and hypothetical planetsAstrolium's guide to Uranian astrology: Alfred Witte's Hamburg School method, 8 hypothetical planets, midpoint trees, planetary pi
Guide
Vedic astrology, the sidereal chart and dasha systemAstrolium's Vedic astrology guide: sidereal zodiac, Lahiri ayanamsa, 27 nakshatras, and the 120-year Vimshottari dasha cycle for j
Guide
Zodiacal releasing, the practitioner guideAstrolium's zodiacal releasing guide for working astrologers: L1 and L2 from Spirit and Fortune, peak years, loosing of the bond,
Blog · product updates
Jyotish, Human Design and Kabbalah: what actually shippedAstrolium shipped a real Kundli with vargas and dasha timing, a Human Design workspace on Pro, a Kabbalah Tree of Life, and numero
Blog · practice
Astrocartography for relocation: a working astrologer's workflowAstrolium walks through a relocation client session using astrocartography map, location comparison, and best-city search across 1
Blog · practice
Human Design alongside Western astrology: a practitioner's notesAstrolium notes from a practicing astrologer: integrating Human Design bodygraph, type, authority, and relationship compatibility
Blog · guides
Astrology AI vs Manual Reading: a Side-by-Side ComparisonAstrolium runs an AI astrology interpretation and a hand-written read for the same chart, then scores both on 4 measurable axes wi
Blog · guides
Birth Chart Rectification Methods Compared: a Working Astrologer's NotesBirth chart rectification: Astrolium compares 4 methods against a real case (born 17 January 1972, time uncertain), with honest ti
Blog · guides
Zodiacal releasing in practice: a worked exampleAstrolium walks through a worked zodiacal releasing read for a client born 14 June 1979. Spirit at 8° Scorpio, L1 transitions, and
Blog · guides
Placidus vs Whole Sign Houses: Why We Default to Whole SignPlacidus vs whole sign houses: why Astrolium defaults to whole sign, when Placidus still wins, and how its 23 supported systems co
Blog · product updates
Swiss Ephemeris in Astrolium: Engineering WalkthroughHow Astrolium's Swiss Ephemeris service works: the Rust rewrite that cut chart math from 340 ms to 8 ms, JPL validation, and why w
Blog · practice
The astrology client intake checklist I actually useAstrolium intake checklist for astrologers: birth-data accuracy, consent records, GDPR retention, and the 12-field form that cut m
Blog · practice
Astrology Career: Building Your Practice in 2026Astrolium astrology career playbook: booking your first 10 paid clients in 90 days, the referral vs social split, and a CRM hygien
Blog · practice
Best Astrology Software Tier: Free, Pro, Adept, or MasterBest astrology software pricing decoded: Free, Pro at $11, Adept at $29, Master at $79. The volume signals and per-session math th
Blog · practice
How to price astrology readings, honestlyAstrolium pricing playbook from a working astrologer: $150, $300, and $500 session brackets, sliding scale rules, and package math
Blog · practice
Solar Fire Astrology Software: Migrating to AstroliumSolar Fire astrology software migration: importing 187 client charts in 30 days, the .SFCHT timezone gotchas, and what I would do
Blog · practice
Running astrology consultations onlineAstrolium online consultation workflow: Zoom plus screen-share chart wheel, 90-minute session structure, recording policy, and fol
Blog · tutorials
Annual Profections Explained: Year-by-Year Worked ExampleAstrolium walks annual profections through 12 years of one client's life (born 28 August 1990) and shows where the year-lord calle
Blog · tutorials
The transit scanner workflow, end to endAstrolium tutorial: how I scan 12 months of transits for a client born 3 March 1988 in 4 minutes, from raw chart open to a 5-bulle