Deep-dive library
Long-form astrology, written for working astrologers.
Each guide pairs with the matching free tool. The tool runs the math, the guide tells you what to do with it. Read top to bottom or jump to the section you need.
Predictive · Saturn
The Saturn return, fully
A 4,000-word reading of the technique. The astronomy, the triple-pass, and how to read the return alongside profections and ZR.
Hellenistic · Annual
Annual profections, fully
Why one of astrology's oldest techniques still produces the most useful predictions. Time-lords, year themes, and stacking with transits.
Hellenistic · Periods
Zodiacal releasing, fully
Spirit and Fortune ribbons, peak periods, the loosing of the bond. The technique Robert Schmidt reconstructed from Vettius Valens.
Relational · Synastry
Synastry, fully
Inter-aspects, composite midpoints, where each person falls in the other's houses. A reading framework you can use the same day.
More reading
Other published guides
AI in astrology, the honest 2026 state
Astrolium's honest 2026 take on AI for astrology: Claude, GPT, Gemini compared. What AI does well, what it fails at, and how to use it without losing craft.
Oleg Kopachovets15 minMay 13, 2026Annual profections, the practitioner guide
Astrolium's annual profections guide: age mod 12 plus 1, the time-lord, sign-by-sign house themes, and how transits stack on the activated topic.
Oleg Kopachovets16 minMay 14, 2026Arabic parts, the hermetic lots
Astrolium's arabic parts guide for astrologers: the 7 hermetic lots (Fortune, Spirit, Eros, Necessity, Courage, Victory, Nemesis), formulas, sect, and use.
Oleg Kopachovets16 minMay 13, 2026The astrocartography hub for working astrologers
Astrolium's practitioner hub for astrocartography. Planetary lines, MC IC AC DC angles, combination lines, parans, and how to run a relocation session.
Oleg Kopachovets19 minMay 19, 2026Jupiter line astrocartography for working practitioners
Astrolium's practitioner guide to the Jupiter line in astrocartography. MC IC AC DC angles, visit vs relocate, combinations, and session workflow.
Oleg Kopachovets10 minMay 19, 2026Parans in astrocartography: the latitude-based reading layer
Astrolium's guide to parans in astrocartography. Bernadette Brady's framework, 1-degree orb, latitude bands, and how practitioners read parans in sessions.
Oleg Kopachovets8 minMay 19, 2026Pluto line astrocartography for working practitioners
Astrolium's practitioner guide to the Pluto line in astrocartography. MC IC AC DC angles, visit vs relocate, combinations, and session workflow.
Oleg Kopachovets10 minMay 19, 2026Saturn line astrocartography for working practitioners
Astrolium's practitioner guide to the Saturn line in astrocartography. MC IC AC DC angles, visit vs relocate, combinations, and session workflow.
Oleg Kopachovets10 minMay 19, 2026Venus line astrocartography for working practitioners
Astrolium's practitioner guide to the Venus line in astrocartography. MC IC AC DC angles, visit vs relocate, combinations, and session workflow.
Oleg Kopachovets10 minMay 19, 2026Astrocartography, line by line
Astrolium's astrocartography guide: Jim Lewis's relocation method, MC IC ASC DSC lines, parans, crossings, and how to use a map to make a real decision.
Oleg Kopachovets15 minMay 13, 2026Composite vs Davison, when each one is right
Astrolium's composite vs Davison guide: midpoint composite averages longitudes, Davison casts the chart for the midpoint birth moment. Astrolium computes both.
Oleg Kopachovets12 minMay 13, 2026Electional Astrology: A Practitioner's Method
Astrolium's practitioner guide to electional astrology: methodology, considerations before judgment, planet elevation, and how to elect dates for client work.
Oleg Kopachovets15 minMay 19, 2026Evolutionary Astrology: the Jeffrey Wolf Green method
Astrolium's guide to Evolutionary Astrology: soul evolution through Pluto and the lunar nodes, the Jeffrey Wolf Green and Steven Forrest lineage, practice.
Oleg Kopachovets14 minMay 19, 2026Fixed Stars in Astrology: The Practitioner Reference
Astrolium's guide to fixed stars in astrology: Behenian magical stars, Royal stars of Persia, Algol, Regulus, Antares, Spica, and natal reading method.
Oleg Kopachovets17 minMay 19, 2026What is Hellenistic astrology
Astrolium's Hellenistic astrology guide: Greek roots, the 1990s Schmidt and Hand revival, time-lords, lots, sect, and why the craft still delivers.
Oleg Kopachovets18 minMay 13, 2026Horary astrology, the question chart
Astrolium's horary astrology guide: Lilly's 7 considerations before judgement, significator routing, perfection, frustration, with 4 worked example charts.
Oleg Kopachovets14 minMay 13, 2026Astrology house systems, compared by a working astrologer
Astrolium's house system guide for astrologers: Placidus vs whole sign, Porphyry, Regiomontanus, Koch, Campanus, Equal, Alcabitius, with a decision tree.
Oleg Kopachovets14 minMay 13, 2026How to read a natal chart
Astrolium's natal chart guide: planets, signs, houses, aspects, the 6-step reading order, common patterns, and the 4 schools from Hellenistic to Vedic.
Oleg Kopachovets23 minMay 13, 2026Human design for astrologers
Astrolium's human design guide for astrologers: five Types, strategies, nine centers, inner authority, and where it overlaps and diverges from natal astrology.
Oleg Kopachovets9 minMay 15, 2026Mundane Astrology: Charts of Nations and Eras
Astrolium's deep guide to mundane astrology: ingress charts, eclipses on world events, planetary cycles in collective history, and the practitioner workflow.
Oleg Kopachovets11 minMay 19, 2026Numerology, the core numbers
Astrolium's numerology guide: reduce your birth date and name into Life Path, Destiny, and Soul Urge numbers using the Pythagorean system, step by step.
Oleg Kopachovets7 minMay 15, 2026Psychological astrology: Liz Greene and the Jungian tradition
Astrolium's guide to psychological astrology: the Jungian framework from Liz Greene and Howard Sasportas, depth psychology, archetypes, and chart work.
Oleg Kopachovets14 minMay 19, 2026Saturn-Neptune Conjunction 2026: Meaning, Dates, Chart Impact
Saturn meets Neptune at 0 Aries in 2026 for the first time since 1989. Dates, historical parallels, and chart impact for natal and mundane work.
Oleg Kopachovets7 minMay 19, 2026Secondary progressions, the slow inner clock
Astrolium's secondary progressions guide: day-for-a-year method, the progressed Moon's 27.5-year cycle, and how to read manifestation against transits.
Oleg Kopachovets13 minMay 13, 2026The solar return, the practitioner guide
Astrolium's solar return guide: Mary Fortier Shea's method, precession-corrected returns, angles to the natal, and what the year is actually about.
Oleg Kopachovets13 minMay 13, 2026How to read a synastry chart, step by step
Astrolium's practitioner reading order for synastry: Sun, Moon, Ascendant first, then inner-planet aspects, outers, house overlays, composite confirmation.
Oleg Kopachovets14 minMay 13, 2026Uranian astrology: the Hamburg School and hypothetical planets
Astrolium's guide to Uranian astrology: Alfred Witte's Hamburg School method, 8 hypothetical planets, midpoint trees, planetary pictures, and the 90 dial.
Oleg Kopachovets14 minMay 19, 2026Vedic astrology, the sidereal chart and dasha system
Astrolium's Vedic astrology guide: sidereal zodiac, Lahiri ayanamsa, 27 nakshatras, and the 120-year Vimshottari dasha cycle for jyotish timing work.
Oleg Kopachovets7 minMay 15, 2026
The reading isn't one technique. It's the stack.
Astrolium computes profections, ZR, transits, returns, and synastry on the same chart, and writes a brief in your school's voice.