# Sira Nur Uysal Astrology School

> Classical and Hellenistic astrology education, consultation, and interactive calculation tools. Bilingual site (Turkish primary, English secondary). Founded by Sira Nur Uysal, a classical astrologer with a DevOps engineering background who merges ancient astrological tradition with modern computational tools. Member of AA, OPA, and AFA.

Last updated: 2026-10-08 (MCP connector section for AI assistants added)

## About

- [Homepage](https://sirauysal.com/): Main landing page for Sira Nur Uysal Astrology School
- [About](https://sirauysal.com/hakkimda/): Background, philosophy, and credentials of Sira Nur Uysal
- [About (EN)](https://sirauysal.com/en/about/): English version

## Use with AI assistants (MCP connector)

Thema is the free astrology software of Sira Nur Uysal Astrology School on sirauysal.com. It connects to Claude and ChatGPT through an MCP (Model Context Protocol) connector. The AI assistant reads and organizes the data you give it, and Thema's calculation engine computes every chart. Planetary positions are never estimated by the AI.

- [AI connector guide (Turkish)](https://sirauysal.com/mcp-rehber/): Step-by-step setup for Claude and ChatGPT with screenshots, example requests, privacy notes and FAQ
- [AI connector guide (English)](https://sirauysal.com/en/mcp-guide/): The same guide in English
- MCP server address: https://sirauysal.com/mcp (Streamable HTTP, OAuth 2.0 with PKCE). Sign-in happens on sirauysal.com, so the password is never sent to the AI app. Opening the address in a browser redirects to the guide.
- MCP server card: https://sirauysal.com/.well-known/mcp.json. OAuth discovery: https://sirauysal.com/.well-known/oauth-protected-resource
- Cost: free. The only requirement is a free sirauysal.com account. On the AI side your own plan applies (ChatGPT needs at least the Plus plan to add a custom MCP server, and Claude's plans decide whether custom connectors can be added).
- Supported clients: Claude (add a custom connector on claude.ai; with the same account the connector is expected to appear in the desktop and mobile apps too, mobile not yet tested by us) and ChatGPT (create a custom MCP server on the web at chatgpt.com, then it also works in the phone app). Other apps that accept a custom MCP server may work but have not been tested.
- What it can do: the calculation tools of the site, including birth charts, transits, secondary progressions, solar returns, lunar returns, solar arc, horary charts, primary directions, profections, firdaria, decennials, Zodiacal Releasing, synastry, almuten and sect, eclipses, planetary hours and the Moon void of course, plus classical techniques such as Arabic Parts. Charts can be saved to the user's Thema library with categories and notes, and the famous-charts database of the site can be searched.
- Processing data you provide: the user can hand the assistant a list, a spreadsheet, a client message, newspaper clippings or research notes. The assistant extracts dates, times and places, asks about anything unclear, and Thema calculates and saves a chart for each event or person. An event with an unknown time is saved as "time unknown", never with an invented time. The AI can make mistakes when it looks up dates and places, so sources should be checked for serious research.
- Privacy: the connection reaches only the user's own account, deleting a chart requires explicit confirmation (a deleted chart is kept for 30 days), and the connection can be removed at any time at https://sirauysal.com/uye/bagli-uygulamalar/
- Thema itself opens at https://sirauysal.com/thema/ (English interface: https://sirauysal.com/en/thema/) after signing in with the free account.

## Consultations

- [Consultations Overview](https://sirauysal.com/danismanlik/): All consultation services
- [Birth Chart Consultation](https://sirauysal.com/danismanlik/dogum-haritasi/): Comprehensive natal chart reading (60-min live Zoom)
- [Annual Forecast](https://sirauysal.com/danismanlik/yillik-ongoru/): Year-ahead predictive consultation
- [Synastry](https://sirauysal.com/danismanlik/sinastri/): Relationship compatibility analysis
- [Child Chart](https://sirauysal.com/danismanlik/cocuk-haritasi/): Children's natal chart reading
- [Electional Astrology](https://sirauysal.com/danismanlik/eleksiyon/): Optimal timing selection for events
- [Rectification](https://sirauysal.com/danismanlik/rektifikasyon/): Birth time correction
- [Single Question (Horary)](https://sirauysal.com/danismanlik/tek-soru/): Horary-style single question consultation (1.750 TRY)
- [Draconic Chart](https://sirauysal.com/danismanlik/drakonik/): Draconic chart analysis
- [Gift Certificate](https://sirauysal.com/danismanlik/hediye/): Gift consultation packages

### English Consultations

- [Birth Chart (EN)](https://sirauysal.com/en/consultation/birth-chart/)
- [Annual Forecast (EN)](https://sirauysal.com/en/consultation/annual-forecast/)
- [Synastry (EN)](https://sirauysal.com/en/consultation/synastry/)
- [Child Chart (EN)](https://sirauysal.com/en/consultation/child-chart/)
- [Electional (EN)](https://sirauysal.com/en/consultation/electional/)
- [Rectification (EN)](https://sirauysal.com/en/consultation/rectification/)
- [Single Question (EN)](https://sirauysal.com/en/consultation/single-question/)
- [Draconic (EN)](https://sirauysal.com/en/consultation/draconic/)
- [Birthday Gift (EN)](https://sirauysal.com/en/consultation/birthday-gift/)

## Education

Şira Nur Uysal Astrology School teaches classical astrology (Hellenistic, Medieval Islamic and Renaissance sources) in Turkish, in weekly live online classes with recordings, quizzes, flashcards and certificates. Courses are taught in Turkish; an English group can be opened if there is enough demand.

- [Astrology Education Hub](https://sirauysal.com/egitimler/): All programmes, how to choose a level, learning path and FAQ. Start here for "where do I begin learning astrology" questions.

### Certificate Programmes

- [Foundation Level (Temel Seviye)](https://sirauysal.com/egitimler/temel-seviye/): 32-lesson certificate programme for complete beginners, no prerequisite. Astronomy for astrologers, signs, luminaries and planets, house systems, houses, aspects, dignities, timing techniques, electional astrology. Enough to read and interpret a natal chart end to end.
- [Advanced Level (İleri Seviye)](https://sirauysal.com/egitimler/ileri-seviye/): 32-lesson certificate programme. Asteroids, synastry, Firdaria, time lords, secondary progressions, solar arc, rectification, mundane astrology. Requires Foundation Level or equivalent knowledge.
- [Horary Certificate Programme](https://sirauysal.com/egitimler/horary-sertifika-programi/): 20-lesson certificate programme in classical horary (question) astrology, following Masha'allah, Sahl, Bonatti and Lilly. Starts 14 October 2026 (joint opening lesson with the other programmes), weekly Friday lessons from 23 October.

### Free Courses

- [Introduction to Horary (Free)](https://sirauysal.com/egitimler/horary-giris-ucretsiz/): Free 2-lesson introduction to horary astrology, enrolment open.

### Workshops (archive)

- [Chart Reading Workshop](https://sirauysal.com/egitimler/harita-okuma-atolyesi/): Practical workshop on holistic chart interpretation
- [Paranatellonta Course](https://sirauysal.com/egitimler/paranatellonta/): Co-rising fixed stars course
- [Moirogenesis, Degrees of Fate](https://sirauysal.com/egitimler/kaderin-dereceleri/): Degree astrology workshop, 15 November 2026
- [Primary Directions Course](https://sirauysal.com/egitimler/primer-yonler/): Classical predictive technique course
- [Draconic Astrology Course](https://sirauysal.com/egitimler/drakonik/): Draconic chart interpretation course
- [Lunar Mansions Course](https://sirauysal.com/egitimler/ay-menzilleri/): 28 lunar mansions course
- [Solar & Lunar Return Workshops](https://sirauysal.com/egitimler/solar-lunar-return/): Reading the year and the month

### English Education

- [Education (EN)](https://sirauysal.com/en/education/)
- [Paranatellonta (EN)](https://sirauysal.com/en/education/paranatellonta/)
- [Horary Certificate (EN)](https://sirauysal.com/en/education/horary-certificate/): English-language classical horary certificate programme, live on Saturdays at 19:00 Istanbul time, starting January 2027.

## Interactive Astrology Tools

Free browser-based calculators built with astronomy-engine. Most tools compute planetary positions from birth data (date, time, city) using the Swiss Ephemeris-equivalent astronomy-engine library with DST-aware timezone resolution. Many tools support Solar Fire .SFcht chart import via the integrated Chart Library.

### Timing & Predictive Techniques

- [Profection Calculator](https://sirauysal.com/araclar/profeksiyon/): Annual profections with Time Lord identification
- [Zodiacal Releasing](https://sirauysal.com/araclar/zodiacal-releasing/): Hellenistic planetary periods from Spirit or Fortune
- [Decennials](https://sirauysal.com/araclar/decennials/): Hellenistic decennial planetary periods
- [Firdaria](https://sirauysal.com/araclar/firdaria/): Medieval planetary period system
- [Primary Directions](https://sirauysal.com/araclar/primer-yonler/): Classical primary directions calculator
- [Solar Return Calculator](https://sirauysal.com/araclar/solar-return/): Yearly solar return chart in the chosen house system, with a natal bi-wheel and return-to-natal aspects
- [Lunar Return Calculator](https://sirauysal.com/araclar/lunar-return/): Every lunar return of a chosen year, each with its chart and a natal bi-wheel
- [Return Lord Calculator](https://sirauysal.com/araclar/donus-lordu/): Solar/lunar return lord analysis
- [Planetary Returns (Gezegen Dönüşü)](https://sirauysal.com/araclar/gezegen-donusu/): Every Venus, Mars, Jupiter and Saturn return over a lifetime, including the triple crossings caused by retrograde motion, with a return chart for each crossing (Turkish; a modern technique, not presented as classical)
- [Directing through the Bounds (Hududlar Boyunca Dağılım)](https://sirauysal.com/araclar/hududlar-boyunca-dagilim/): Circumambulation: the Ascendant, Lot of Fortune, Moon, Sun or MC directed through the Egyptian or Ptolemaic bounds, with distributor and partner periods by Ptolemy and Naibod keys (Tetrabiblos IV.10) (Turkish)
- [Triplicity Lords of Life (Trigon Lordlarının Hayat Dönemleri)](https://sirauysal.com/araclar/trigon-lordlari/): Triplicity rulers of the sect light in Dorotheus order (Carmen I), their place and condition, compared with Valens II.2 (Turkish)
- [Tertiary and Minor Progressions (Tersiyer ve Minör İlerletim)](https://sirauysal.com/araclar/tersiyer-minor-ilerletim/): Tertiary (1 day = 1 lunar month) and minor (1 lunar month = 1 year) progressed charts with a tropical/synodic month choice, compared with secondary progressions; exact progressed-to-natal aspect dates and progressed Moon ingresses per year (Turkish; modern techniques, not presented as classical)
- [Transit Hit List (Transit İsabet Listesi)](https://sirauysal.com/araclar/transit-isabet-listesi/): Every exact transit-to-natal aspect in a date range with time, retrograde passes labelled 1/3-3/3, orb window, sign and house; CSV and .ics export (Turkish)
- [Harmonic Charts (Harmonik Harita)](https://sirauysal.com/araclar/harmonik-harita/): Nth harmonic chart (1-32), harmonic conjunctions and natal aspect correspondences; modern technique (Addey 1976, Hamblin 1983) (Turkish)
- [Harmonic Chart (EN)](https://sirauysal.com/en/tools/harmonic-chart/): Nth harmonic chart (1-32), harmonic conjunctions and natal aspect equivalents; modern technique (Addey 1976, Hamblin 1983)
- [Midpoint Trees and 90° Dial (Orta Nokta Ağacı ve 90° Kadran)](https://sirauysal.com/araclar/orta-nokta/): 78 midpoints, Ebertin-style midpoint trees, rotating 90° dial with transit ring; modern technique (Turkish)
- [Declinations and Parallels (Deklinasyon ve Paraleller)](https://sirauysal.com/araclar/deklinasyon/): Declinations, parallels and contra-parallels, out-of-bounds planets with entry/exit dates, compared with antiscia (Turkish)
- [Aries Ingress and Quarter Charts (Koç İngressi ve Çeyrek Haritaları)](https://sirauysal.com/araclar/koc-ingressi/): Exact Sun ingresses into Aries, Cancer, Libra and Capricorn (1000-2200, Swiss Ephemeris), chart for any city, Abu Ma'shar's ascendant-modality rule, lord of the year (ruler and almuten compared), preceding syzygy after Ptolemy (Turkish)
- [Great Conjunctions (Büyük Kavuşumlar)](https://sirauysal.com/araclar/buyuk-kavusumlar/): All Jupiter-Saturn conjunctions 1000-2200 with exact times, triple conjunctions, triplicity shifts, true vs mean conjunction and Abu Ma'shar's 20/240/960-year scheme, conjunction chart for any city (Turkish)
- [Electional Search (Seçim Arama)](https://sirauysal.com/araclar/secim-arama/): Finds time windows in a chosen city and date range where selected classical election rules hold (Moon not void of course, not under the beams, not in the via combusta, waxing, swift; no applying square or opposition to Mars or Saturn; ascendant ruler angular; planetary hour). Each rule names its source (Dorotheus Carmen V, Sahl, Lilly) and both variants are offered where sources differ (Turkish; a helper, not a substitute for a professional election).
- [Decanal Hour Calculator](https://sirauysal.com/araclar/dekanal-saat-hesaplayicisi/): Decanal hour ruler reference and calculator

### Chart & Aspect Analysis

- [Aspect Chart](https://sirauysal.com/araclar/aci-harita/): Full aspect grid between natal planets
- [Astrological Aspects](https://sirauysal.com/araclar/astrolojik-acilar/): Aspect reference and calculator
- [Synastry Calculator](https://sirauysal.com/araclar/sinastri/): Relationship compatibility aspect analysis
- [Almuten Calculator](https://sirauysal.com/araclar/almuten-hesaplayicisi/): Almuten figuris and almuten of a degree calculator
- [House Cusps Tables (Ev Tabloları)](https://sirauysal.com/araclar/ev-tablolari/): Classical house cusp calculator (Placidus, Regiomontanus, Alcabitius, Porphyry, Equal House). Side-by-side 5-system comparison. Printable Table of Houses generator with 4-minute sidereal step (Raphael's, Dalton, AFA style)
- [Hyleg & Alcocoden](https://sirauysal.com/araclar/hyleg-alcocoden/): Hyleg and alcocoden determination for life-length calculation
- [Sect Evaluator](https://sirauysal.com/araclar/sect-degerlendirme/): Day/night sect evaluation for chart analysis
- [Horary Techniques](https://sirauysal.com/araclar/horary-teknikleri/): Horary chart analysis tools (considerations, perfections, testimonies)
- [Fibonacci & Golden Ratio Calculator](https://sirauysal.com/araclar/fibonacci-altin-oran/): Fibonacci, phi, Kepler harmonics, Lucas numbers and metallic ratio analysis between planetary angles
- [Astro-Gematria](https://sirauysal.com/araclar/astro-gematria/): Gematria-based zodiac degree calculator for words and names
- [Mandelbrot Fractal Explorer](https://sirauysal.com/araclar/mandelbrot-fraktal/): Interactive Mandelbrot and Julia set explorer. Fractal geometry, z² + c iteration, Fibonacci connection in the complex plane
- [Sky Fractal Signature](https://sirauysal.com/araclar/gokyuzu-fraktal-imzasi/): Julia sets generated from synodic angles of 10 planetary pairs

### Fixed Stars & Points

- [Fixed Star Calculator](https://sirauysal.com/araclar/sabit-yildiz-hesaplama/): Natal conjunctions to 118 named fixed stars
- [Star Chart](https://sirauysal.com/araclar/yildiz-haritasi/): Interactive night sky map with constellations
- [Venus Star Point](https://sirauysal.com/araclar/venus-yildiz-noktasi/): Venus synodic cycle and star point analysis
- [Asteroid Calculator (Asteroit Hesaplayıcı)](https://sirauysal.com/araclar/asteroit-hesaplama/): Any numbered asteroid by number or name in a birth chart: sign, degree, retrograde, house, tight-orb natal aspects and a wheel with an outer asteroid ring. Positions from NASA JPL Horizons; asteroids are given no rulership (Turkish)
- [Hermetic Lots](https://sirauysal.com/araclar/hermetik-noktalar/): Hellenistic lots calculator
- [Arabic Parts Calculator](https://sirauysal.com/araclar/arap-noktalari-hesaplayicisi/): Medieval Arabic parts (lots) calculator

### Astrocartography

- [Astrocartography](https://sirauysal.com/araclar/astrokartografi/): Planetary lines on world map (MC/IC/AC/DC for all planets)
- [Astrocartography 3D](https://sirauysal.com/araclar/astrokartografi-3d/): 3D globe visualization of astrocartography lines

### Astronomical Tools

- [Coordinate Converter](https://sirauysal.com/araclar/koordinat-donusturucu/): Ecliptic, equatorial, horizontal coordinate conversion
- [Parallax & Refraction](https://sirauysal.com/araclar/parallaks-refraksiyon/): Atmospheric refraction and parallax correction
- [Precession Calculator](https://sirauysal.com/araclar/presesyon/): Precession of the equinoxes calculator
- [Planet Visibility](https://sirauysal.com/araclar/gezegen-gorunurluk/): Heliacal rising/setting and visibility phases
- [Planetary Speed Reference](https://sirauysal.com/araclar/gezegen-hizi-referansi/): Reference for planetary daily motion and speed comparison

### Visual Simulations

- [Zodiac Wheel](https://sirauysal.com/araclar/zodyak-cemberi/): Interactive zodiac circle with planetary positions
- [Gezegenlerin Transitleri](https://sirauysal.com/araclar/gezegenlerin-transitleri/): Live transit wheel showing the planets' real geocentric positions, retrogrades and sign changes
- [Lunar Nodes](https://sirauysal.com/araclar/ay-dugumleri/): North/South node cycle simulation
- [Lunar Phases](https://sirauysal.com/araclar/ay-evreleri-simulasyonu/): Moon phase cycle simulation
- [Eclipse Simulation](https://sirauysal.com/araclar/tutulma-simulasyonu/): Solar and lunar eclipse visualization
- [Eclipse + Natal Effect](https://sirauysal.com/araclar/tutulma-natal-etki/): Which house, planet, and sensitive point in your natal chart does the current/upcoming eclipse trigger? Auto-detects past 12 months + next 12 months of all solar and lunar eclipses with Whole Sign houses.
- [Season Simulation](https://sirauysal.com/araclar/mevsim-simulasyonu/): Earth's axial tilt and seasons
- [Retrograde Simulation](https://sirauysal.com/araclar/retro-simulasyonu/): Retrograde motion visualization
- [Astrolabe](https://sirauysal.com/araclar/usturlap/): Interactive medieval astrolabe simulation

### Calendars & Reference

- [Calendars Overview](https://sirauysal.com/araclar/takvimler/): Hub for eleven historical calendar tools
- [Babylonian Calendar](https://sirauysal.com/araclar/takvimler/babil/): Babylonian lunisolar calendar, Akitu festival, Astronomical Diaries
- [Byzantine Calendar](https://sirauysal.com/araclar/takvimler/bizans/): Gregorian to Anno Mundi converter, Greek month names, the 15-year indiction
- [Hebrew Calendar](https://sirauysal.com/araclar/takvimler/ibrani/): The Hillel II lunisolar system, molad calculation, festivals, the 19-year cycle
- [Greek Calendar](https://sirauysal.com/araclar/takvimler/yunan/): Athenian and other polis calendars, Hesiod's heliacal risings, the Metonic cycle
- [Roman Calendar](https://sirauysal.com/araclar/takvimler/roma/): The pre-Julian lunisolar calendar, Kalendae, Nonae, Idus
- [Egyptian Civil Calendar](https://sirauysal.com/araclar/takvimler/misir-sivil/): The 365-day civil year, Sothis cycle, 36 decans
- [Persian and Zoroastrian Calendar](https://sirauysal.com/araclar/takvimler/zerdusti/): The 365-day yazata calendar, six Gahanbars, Nowruz, Yazdegerd era
- [Pre-Islamic Arab Calendar](https://sirauysal.com/araclar/takvimler/islam-oncesi/): Twelve months, manazil al-qamar (lunar mansions), the Hajj season, nasi intercalation
- [Mayan Calendar](https://sirauysal.com/araclar/takvimler/maya/): The 260-day Tzolk'in, 365-day Haab, Long Count, 52-year Calendar Round
- [Anatolian Folk Calendar](https://sirauysal.com/araclar/takvimler/halk-takvimi/): The Turkish rural year, cemre, Hidirellez, Eyyam-i Bahur
- [Venus Star Point Calendar](https://sirauysal.com/araclar/takvimler/venus-yildiz-noktasi/): Every Sun-Venus conjunction from 1900 to 2100, the eight-year pentagram
- [Personal Care Calendar by the Moon](https://sirauysal.com/araclar/kisisel-bakim-takvimi/): Haircut, hair colouring, epilation and skin care days by Moon phase and sign
- [Temperament Test](https://sirauysal.com/araclar/mizac-testi/): Classical four-temperament quiz

### English Tools

All tools above have English versions at `/en/tools/[slug]/`. Complete list:

- [Tools Overview (EN)](https://sirauysal.com/en/tools/)
- [Profection (EN)](https://sirauysal.com/en/tools/profection/)
- [Zodiacal Releasing (EN)](https://sirauysal.com/en/tools/zodiacal-releasing/)
- [Decennials (EN)](https://sirauysal.com/en/tools/decennials/)
- [Firdaria (EN)](https://sirauysal.com/en/tools/firdaria/)
- [Primary Directions (EN)](https://sirauysal.com/en/tools/primary-directions/)
- [Solar Return (EN)](https://sirauysal.com/en/tools/solar-return/)
- [Lunar Return (EN)](https://sirauysal.com/en/tools/lunar-return/)
- [Return Lord (EN)](https://sirauysal.com/en/tools/return-lord/)
- [Decanal Hour Calculator (EN)](https://sirauysal.com/en/tools/decanal-hour-calculator/)
- [Aspect Chart (EN)](https://sirauysal.com/en/tools/aspect-chart/)
- [Astrological Aspects (EN)](https://sirauysal.com/en/tools/astrological-aspects/)
- [Synastry (EN)](https://sirauysal.com/en/tools/synastry/)
- [Almuten Calculator (EN)](https://sirauysal.com/en/tools/almuten-calculator/)
- [Hyleg & Alcocoden (EN)](https://sirauysal.com/en/tools/hyleg-alcocoden/)
- [Sect Evaluator (EN)](https://sirauysal.com/en/tools/sect-evaluator/)
- [Horary Techniques (EN)](https://sirauysal.com/en/tools/horary-techniques/)
- [Fibonacci & Golden Ratio (EN)](https://sirauysal.com/en/tools/fibonacci-golden-ratio/)
- [Astro-Gematria (EN)](https://sirauysal.com/en/tools/astro-gematria/)
- [Mandelbrot Fractal Explorer (EN)](https://sirauysal.com/en/tools/mandelbrot-fractal/)
- [Sky Fractal Signature (EN)](https://sirauysal.com/en/tools/sky-fractal-signature/)
- [Fixed Star Calculator (EN)](https://sirauysal.com/en/tools/fixed-star-calculator/)
- [Star Chart (EN)](https://sirauysal.com/en/tools/star-chart/)
- [Venus Star Point (EN)](https://sirauysal.com/en/tools/venus-star-point/)
- [Asteroid Calculator (EN)](https://sirauysal.com/en/tools/asteroid-calculator/)
- [Hermetic Lots (EN)](https://sirauysal.com/en/tools/hermetic-lots/)
- [Arabic Parts Calculator (EN)](https://sirauysal.com/en/tools/arabic-parts-calculator/)
- [Astrocartography (EN)](https://sirauysal.com/en/tools/astrocartography/)
- [Astrocartography 3D (EN)](https://sirauysal.com/en/tools/astrocartography-3d/)
- [Coordinate Converter (EN)](https://sirauysal.com/en/tools/coordinate-converter/)
- [Parallax & Refraction (EN)](https://sirauysal.com/en/tools/parallax-refraction/)
- [Precession (EN)](https://sirauysal.com/en/tools/precession/)
- [Planet Visibility (EN)](https://sirauysal.com/en/tools/planet-visibility/)
- [Planetary Speed Reference (EN)](https://sirauysal.com/en/tools/planetary-speed-reference/)
- [Zodiac Wheel (EN)](https://sirauysal.com/en/tools/zodiac-wheel/)
- [Planetary Transits (EN)](https://sirauysal.com/en/tools/planetary-transits/)
- [Lunar Nodes (EN)](https://sirauysal.com/en/tools/lunar-nodes/)
- [Lunar Phases (EN)](https://sirauysal.com/en/tools/lunar-phases-simulation/)
- [Eclipse Simulation (EN)](https://sirauysal.com/en/tools/eclipse-simulation/)
- [Season Simulation (EN)](https://sirauysal.com/en/tools/season-simulation/)
- [Retrograde Simulation (EN)](https://sirauysal.com/en/tools/retrograde-simulation/)
- [Astrolabe (EN)](https://sirauysal.com/en/tools/astrolabe/)
- [Calendars Overview (EN)](https://sirauysal.com/en/tools/calendars/)
- [Babylonian Calendar (EN)](https://sirauysal.com/en/tools/calendars/babylonian/)
- [Byzantine Calendar (EN)](https://sirauysal.com/en/tools/calendars/byzantine/)
- [Hebrew Calendar (EN)](https://sirauysal.com/en/tools/calendars/hebrew/)
- [Greek Calendar (EN)](https://sirauysal.com/en/tools/calendars/greek/)
- [Roman Calendar (EN)](https://sirauysal.com/en/tools/calendars/roman/)
- [Egyptian Civil Calendar (EN)](https://sirauysal.com/en/tools/calendars/egyptian-civil/)
- [Persian/Zoroastrian Calendar (EN)](https://sirauysal.com/en/tools/calendars/zoroastrian/)
- [Pre-Islamic Arab Calendar (EN)](https://sirauysal.com/en/tools/calendars/pre-islamic-arab/)
- [Mayan Calendar (EN)](https://sirauysal.com/en/tools/calendars/mayan/)
- [Lunar Phase Calendar (EN)](https://sirauysal.com/en/tools/calendars/lunar-phase/)
- [Venus Star Point Calendar (EN)](https://sirauysal.com/en/tools/calendars/venus-star-point/)
- [Temperament Test (EN)](https://sirauysal.com/en/tools/temperament-test/)
- [Free Birth Chart (EN)](https://sirauysal.com/en/tools/birth-chart/)

## Mythology (family trees and planet mythology)

- [Yunan Tanrıları Soyağacı](https://sirauysal.com/araclar/yunan-tanrilari-soyagaci/): Interactive Greek gods family tree, 442 figures from Chaos to the Olympians (Turkish)
- [İskandinav Tanrıları Soyağacı](https://sirauysal.com/araclar/iskandinav-tanrilari-soyagaci/): Norse gods family tree, 163 figures after the Eddas (Turkish)
- [Mısır Tanrıları Soyağacı](https://sirauysal.com/araclar/misir-tanrilari-soyagaci/): Egyptian gods family tree, Ennead and Ogdoad, 92 figures (Turkish)
- [Mezopotamya Tanrıları Soyağacı](https://sirauysal.com/araclar/mezopotamya-tanrilari-soyagaci/): Mesopotamian gods family tree after Enuma Elish with the planetary gods, 102 figures (Turkish)
- [Göksel Mitoloji ve Kutsal Anlatılar](https://sirauysal.com/araclar/goksel-anlatilar/): Series visualizing ancient narratives alongside their sky counterparts, with animated drawings and real star maps (Turkish)
- [Yunus ve Büyük Balık](https://sirauysal.com/araclar/goksel-anlatilar/yunus/): The Jonah story read on the sky scene of Argo, Cetus, Taurus and Aries, step by step (Turkish)
- [İnanna'nın Yeraltına İnişi ve Venüs Döngüsü](https://sirauysal.com/araclar/goksel-anlatilar/inanna/): Inanna's descent beside Venus' 8-year cycle computed from real ephemeris data (Turkish)
- [Merkür ile Venüs'ün Buluşmaları](https://sirauysal.com/araclar/goksel-anlatilar/merkur-venus/): Mercury and Venus as evening and morning stars, their elongations and 2026-2035 conjunction dates, Venus periods marked by Mercury and the ~40-year Mercury/Venus cycle (1900-2100) from real ephemeris data, beside Hesperos/Eosphoros, Hermaphroditos and Nabu/Ishtar (Turkish)
- [Japon Tanrıları Soyağacı](https://sirauysal.com/araclar/japon-tanrilari-soyagaci/): Japanese kami family tree after the Kojiki, 110 figures (Turkish)
- [Hint Tanrıları Soyağacı](https://sirauysal.com/araclar/hint-tanrilari-soyagaci/): Hindu gods family tree, 167 figures; includes the Navagraha (the nine planetary deities of Vedic astrology) and the mythic origin of the 27 nakshatras (Turkish)
- [Kelt Tanrıları Soyağacı](https://sirauysal.com/araclar/kelt-tanrilari-soyagaci/): Celtic gods family tree, 155 figures; Tuatha De Danann, the Fomorians and a Welsh Mabinogi branch, with the four fire festivals (Turkish)
- [Slav Tanrıları Soyağacı](https://sirauysal.com/araclar/slav-tanrilari-soyagaci/): Slavic gods family tree, 116 figures; each contested figure marked as a reconstruction with its source (Turkish)
- [Aztek Tanrıları Soyağacı](https://sirauysal.com/araclar/aztek-tanrilari-soyagaci/): Aztec gods family tree, 142 figures; the 13 Lords of the Day, the 9 Lords of the Night and the tonalpohualli calendar (Turkish)
- [Gezegen Mitolojisi](https://sirauysal.com/araclar/gezegen-mitolojisi/): Hub: mythology and symbolism maps of the seven classical planets (Turkish)
- [Güneş Mitolojisi](https://sirauysal.com/araclar/gezegen-mitolojisi/gunes/): Sun mythology: gods across cultures, glyph, three myths, classical astrology, correspondences (Turkish)
- [Ay Mitolojisi](https://sirauysal.com/araclar/gezegen-mitolojisi/ay/): Moon mythology: gods across cultures, glyph, three myths, classical astrology, correspondences (Turkish)
- [Merkür Mitolojisi](https://sirauysal.com/araclar/gezegen-mitolojisi/merkur/): Mercury mythology: gods across cultures, glyph, three myths, classical astrology, correspondences (Turkish)
- [Venüs Mitolojisi](https://sirauysal.com/araclar/gezegen-mitolojisi/venus/): Venus mythology: gods across cultures, glyph, three myths, classical astrology, correspondences (Turkish)
- [Mars Mitolojisi](https://sirauysal.com/araclar/gezegen-mitolojisi/mars/): Mars mythology: gods across cultures, glyph, three myths, classical astrology, correspondences (Turkish)
- [Jüpiter Mitolojisi](https://sirauysal.com/araclar/gezegen-mitolojisi/jupiter/): Jupiter mythology: gods across cultures, glyph, three myths, classical astrology, correspondences (Turkish)
- [Satürn Mitolojisi](https://sirauysal.com/araclar/gezegen-mitolojisi/saturn/): Saturn mythology: gods across cultures, glyph, three myths, classical astrology, correspondences (Turkish)
- [Uranüs Mitolojisi](https://sirauysal.com/araclar/gezegen-mitolojisi/uranus/): Uranus mythology: gods across cultures, glyph, three myths; NO rulership in classical astrology, stated explicitly (Turkish)
- [Neptün Mitolojisi](https://sirauysal.com/araclar/gezegen-mitolojisi/neptun/): Neptune mythology: gods across cultures, glyph, three myths; NO rulership in classical astrology, stated explicitly (Turkish)
- [Plüton Mitolojisi](https://sirauysal.com/araclar/gezegen-mitolojisi/pluton/): Pluto mythology: gods across cultures, glyph, three myths; NO rulership in classical astrology, stated explicitly (Turkish)
- [Kiron Mitolojisi](https://sirauysal.com/araclar/gezegen-mitolojisi/kiron/): Chiron mythology: gods across cultures, glyph, three myths; NO rulership in classical astrology, stated explicitly (Turkish)
- [Asteroid Mitolojisi](https://sirauysal.com/araclar/asteroid-mitolojisi/): Hub: mythology and symbolism maps of nine asteroids and eight dwarf planets and trans-Neptunian objects, with an explicit note that they hold no rulership (Turkish)
- [Ceres Mitolojisi](https://sirauysal.com/araclar/asteroid-mitolojisi/ceres/): Ceres mythology: goddess across cultures, glyph, three myths, no rulership in classical astrology (Turkish)
- [Pallas Mitolojisi](https://sirauysal.com/araclar/asteroid-mitolojisi/pallas/): Pallas mythology: goddess across cultures, glyph, three myths, no rulership in classical astrology (Turkish)
- [Juno Mitolojisi](https://sirauysal.com/araclar/asteroid-mitolojisi/juno/): Juno mythology: goddess across cultures, glyph, three myths, no rulership in classical astrology (Turkish)
- [Vesta Mitolojisi](https://sirauysal.com/araclar/asteroid-mitolojisi/vesta/): Vesta mythology: goddess across cultures, glyph, three myths, no rulership in classical astrology (Turkish)
- [Astraea](https://sirauysal.com/araclar/asteroid-mitolojisi/astraea/): Astraea: myth or history behind the asteroid name, glyph, sources, no rulership in classical astrology (Turkish)
- [Hygieia](https://sirauysal.com/araclar/asteroid-mitolojisi/hygieia/): Hygieia: myth or history behind the asteroid name, glyph, sources, no rulership in classical astrology (Turkish)
- [Psykhe](https://sirauysal.com/araclar/asteroid-mitolojisi/psykhe/): Psykhe: myth or history behind the asteroid name, glyph, sources, no rulership in classical astrology (Turkish)
- [Eros](https://sirauysal.com/araclar/asteroid-mitolojisi/eros/): Eros: myth or history behind the asteroid name, glyph, sources, no rulership in classical astrology (Turkish)
- [Sappho](https://sirauysal.com/araclar/asteroid-mitolojisi/sappho/): Sappho: myth or history behind the asteroid name, glyph, sources, no rulership in classical astrology (Turkish)
- [Eris](https://sirauysal.com/araclar/asteroid-mitolojisi/eris/): Eris: Greek goddess of strife, the two Erides of Hesiod, layers of the golden apple story, naming of the dwarf planet, no rulership in classical astrology (Turkish)
- [Haumea](https://sirauysal.com/araclar/asteroid-mitolojisi/haumea/): Haumea: Hawaiian goddess of childbirth from Hawaiian sources, Makalei, the breadfruit form, disputed discovery, no rulership in classical astrology (Turkish)
- [Makemake](https://sirauysal.com/araclar/asteroid-mitolojisi/makemake/): Makemake: Rapa Nui creator god, the birdman cult at Orongo, records by Routledge and Métraux, no rulership in classical astrology (Turkish)
- [Sedna](https://sirauysal.com/araclar/asteroid-mitolojisi/sedna/): Sedna: Inuit sea woman and her regional names (Nuliajuk, Takanakapsaluk, Arnaqquassaaq), Boas and Rasmussen records, no rulership in classical astrology (Turkish)
- [Quaoar](https://sirauysal.com/araclar/asteroid-mitolojisi/quaoar/): Quaoar: Tongva creator, Hugo Reid's 1852 record, Weywot, Tongva consultation in the naming, no rulership in classical astrology (Turkish)
- [Orcus](https://sirauysal.com/araclar/asteroid-mitolojisi/orcus/): Orcus: Roman god of death in Latin poetry, the Horkos question, Etruscan Vanth, the anti-Pluto plutino, no rulership in classical astrology (Turkish)
- [Ixion](https://sirauysal.com/araclar/asteroid-mitolojisi/ixion/): Ixion: Pindar's wheel, the cloud in Hera's likeness, the birth of the centaurs, glyph not in Unicode, no rulership in classical astrology (Turkish)
- [Gonggong](https://sirauysal.com/araclar/asteroid-mitolojisi/gonggong/): Gonggong: Chinese water god, Mount Buzhou and the tilted sky, Nüwa, Xiangliu, the 2019 public vote, no rulership in classical astrology (Turkish)

### English Mythology Pages

- [Hindu Gods Family Tree](https://sirauysal.com/en/tools/hindu-gods-family-tree/): 167 figures; the Navagraha of Vedic astrology and the origin of the 27 nakshatras
- [Celtic Gods Family Tree](https://sirauysal.com/en/tools/celtic-gods-family-tree/): 155 figures; Tuatha De Danann, Fomorians, a Welsh branch and the four fire festivals
- [Slavic Gods Family Tree](https://sirauysal.com/en/tools/slavic-gods-family-tree/): 116 figures; contested figures marked as reconstructions with their source
- [Aztec Gods Family Tree](https://sirauysal.com/en/tools/aztec-gods-family-tree/): 142 figures; the 13 Lords of the Day, 9 Lords of the Night and the tonalpohualli
- [Greek Gods Family Tree](https://sirauysal.com/en/tools/greek-gods-family-tree/): Interactive Greek gods family tree, 442 figures from Chaos to the Olympians
- [Norse Gods Family Tree](https://sirauysal.com/en/tools/norse-gods-family-tree/): Norse gods family tree, 163 figures after the Eddas
- [Egyptian Gods Family Tree](https://sirauysal.com/en/tools/egyptian-gods-family-tree/): Egyptian gods family tree, Ennead and Ogdoad, 92 figures
- [Mesopotamian Gods Family Tree](https://sirauysal.com/en/tools/mesopotamian-gods-family-tree/): Mesopotamian gods family tree after Enuma Elish with the planetary gods, 102 figures
- [Japanese Gods Family Tree](https://sirauysal.com/en/tools/japanese-gods-family-tree/): Japanese kami family tree after the Kojiki, 110 figures
- [Planet Mythology](https://sirauysal.com/en/tools/planet-mythology/): Hub: mythology and symbolism maps of the seven classical planets
- [Sun Mythology](https://sirauysal.com/en/tools/planet-mythology/sun/): Sun mythology: gods across cultures, glyph, three myths, classical astrology, correspondences
- [Moon Mythology](https://sirauysal.com/en/tools/planet-mythology/moon/): Moon mythology: gods across cultures, glyph, three myths, classical astrology, correspondences
- [Mercury Mythology](https://sirauysal.com/en/tools/planet-mythology/mercury/): Mercury mythology: gods across cultures, glyph, three myths, classical astrology, correspondences
- [Venus Mythology](https://sirauysal.com/en/tools/planet-mythology/venus/): Venus mythology: gods across cultures, glyph, three myths, classical astrology, correspondences
- [Mars Mythology](https://sirauysal.com/en/tools/planet-mythology/mars/): Mars mythology: gods across cultures, glyph, three myths, classical astrology, correspondences
- [Jupiter Mythology](https://sirauysal.com/en/tools/planet-mythology/jupiter/): Jupiter mythology: gods across cultures, glyph, three myths, classical astrology, correspondences
- [Saturn Mythology](https://sirauysal.com/en/tools/planet-mythology/saturn/): Saturn mythology: gods across cultures, glyph, three myths, classical astrology, correspondences
- [Uranus Mythology](https://sirauysal.com/en/tools/planet-mythology/uranus/): Uranus: gods across cultures, glyph, three myths; NO rulership in classical astrology, stated explicitly
- [Neptune Mythology](https://sirauysal.com/en/tools/planet-mythology/neptune/): Neptune: gods across cultures, glyph, three myths; NO rulership in classical astrology, stated explicitly
- [Pluto Mythology](https://sirauysal.com/en/tools/planet-mythology/pluto/): Pluto: gods across cultures, glyph, three myths; NO rulership in classical astrology, stated explicitly
- [Chiron Mythology](https://sirauysal.com/en/tools/planet-mythology/chiron/): Chiron: gods across cultures, glyph, three myths; NO rulership in classical astrology, stated explicitly

## Astrology Glossary

~1000 entries covering classical, Hellenistic, medieval, and modern astrological terminology. Each entry includes definition, historical context, and cross-references. Recently consolidated (April 2026) — 36 redirects in place for renamed/merged entries.

- [Glossary Index (TR)](https://sirauysal.com/astroloji-sozlugu/): Full A-Z Turkish astrology glossary
- [Glossary Index (EN)](https://sirauysal.com/en/astrology-glossary/): Full A-Z English astrology glossary
- Individual entries at `/astroloji-sozlugu/[term-slug]/` (TR) and `/en/astrology-glossary/[term-slug]/` (EN)

## Fixed Stars Database

118 named fixed stars with astrological significations, magnitude, constellation, and natal interpretation.

- [Fixed Stars Index (TR)](https://sirauysal.com/sabit-yildizlar/): Turkish fixed star directory
- [Fixed Stars Index (EN)](https://sirauysal.com/en/fixed-stars/): English fixed star directory
- Individual star pages at `/sabit-yildizlar/[star-name]/` (TR) and `/en/fixed-stars/[star-name]/` (EN)

## Birth Chart Database: Famous People and National Charts

- [Birth Chart Database (Haritalar)](https://sirauysal.com/haritalar/): Hub of the public chart database: famous people, national charts and event charts, each with its own page (wheel, placements, dignities, source and Rodden rating, quick transits for any date, next eclipses by syzygy degree, open-in-Thema button) (Turkish)
- [National Charts (Ülke Haritaları)](https://sirauysal.com/haritalar/ulkeler/): Directory of all national (country) birth charts in the site database, grouped by country and region, with date, time, city, reliability label (document, tradition, disputed) and source for each chart, search and region filter, one page per country (Turkish)
- [Famous People's Birth Charts (Ünlülerin Doğum Haritaları)](https://sirauysal.com/haritalar/unluler/): Directory of famous people's birth charts, people from Turkey and from around the world, split into profession group pages (leaders, musicians, actors...) with search across all records and one page per person. Timed charts come from Astro-Databank with their Rodden rating, Turkish entries without a known birth time are marked Rodden X and rest on at least two independent sources for the date (Turkish)
- [Event Charts (Olay Haritaları)](https://sirauysal.com/haritalar/olaylar/): Directory of event charts: earthquakes, spaceflight and aviation, accidents and disasters, political and historical moments. Each event's starting moment is documented to the minute in at least two independent sources (seismic catalogues, NASA, official inquiry reports, archives), local time and UTC, coordinates and a source-confidence label on each page, one page per event (Turkish)
- [Leaders Birth Charts (Liderler)](https://sirauysal.com/haritalar/unluler/lider/): Birth charts of 111 leaders from the site database (18 from Turkey, 93 from the rest of the world) with Rodden rating, Ascendant, Sun and Moon, one page per person (Turkish)
- [Politicians Birth Charts (Siyasetçiler)](https://sirauysal.com/haritalar/unluler/siyaset/): Birth charts of 178 politicians from the site database (76 from Turkey, 102 from the rest of the world) with Rodden rating, Ascendant, Sun and Moon, one page per person (Turkish)
- [Scientists Birth Charts (Bilim insanları)](https://sirauysal.com/haritalar/unluler/bilim/): Birth charts of 203 scientists from the site database (19 from Turkey, 184 from the rest of the world) with Rodden rating, Ascendant, Sun and Moon, one page per person (Turkish)
- [Artists Birth Charts (Sanatçılar)](https://sirauysal.com/haritalar/unluler/sanat/): Birth charts of 148 artists from the site database (4 from Turkey, 144 from the rest of the world) with Rodden rating, Ascendant, Sun and Moon, one page per person (Turkish)
- [Singers and Musicians Birth Charts (Şarkıcılar ve müzisyenler) - Turkey](https://sirauysal.com/haritalar/unluler/muzik/): Birth charts of 115 singers and musicians from the site database (115 from Turkey, 0 from the rest of the world) with Rodden rating, Ascendant, Sun and Moon, one page per person (Turkish)
- [Singers and Musicians Birth Charts (Şarkıcılar ve müzisyenler) - World](https://sirauysal.com/haritalar/unluler/muzik/dunya/): Birth charts of 297 singers and musicians from the site database (0 from Turkey, 297 from the rest of the world) with Rodden rating, Ascendant, Sun and Moon, one page per person (Turkish)
- [Writers and Poets Birth Charts (Yazarlar ve şairler)](https://sirauysal.com/haritalar/unluler/edebiyat/): Birth charts of 254 writers and poets from the site database (38 from Turkey, 216 from the rest of the world) with Rodden rating, Ascendant, Sun and Moon, one page per person (Turkish)
- [Actors and Directors Birth Charts (Oyuncular ve yönetmenler) - Turkey](https://sirauysal.com/haritalar/unluler/sinema/): Birth charts of 204 actors and directors from the site database (204 from Turkey, 0 from the rest of the world) with Rodden rating, Ascendant, Sun and Moon, one page per person (Turkish)
- [Actors and Directors Birth Charts (Oyuncular ve yönetmenler) - Turkey](https://sirauysal.com/haritalar/unluler/sinema/turkiye-h-z/): Birth charts of 205 actors and directors from the site database (205 from Turkey, 0 from the rest of the world) with Rodden rating, Ascendant, Sun and Moon, one page per person (Turkish)
- [Actors and Directors Birth Charts (Oyuncular ve yönetmenler) - World](https://sirauysal.com/haritalar/unluler/sinema/dunya/): Birth charts of 331 actors and directors from the site database (0 from Turkey, 331 from the rest of the world) with Rodden rating, Ascendant, Sun and Moon, one page per person (Turkish)
- [Athletes Birth Charts (Sporcular) - Turkey](https://sirauysal.com/haritalar/unluler/spor/): Birth charts of 144 athletes from the site database (144 from Turkey, 0 from the rest of the world) with Rodden rating, Ascendant, Sun and Moon, one page per person (Turkish)
- [Athletes Birth Charts (Sporcular) - World](https://sirauysal.com/haritalar/unluler/spor/dunya/): Birth charts of 307 athletes from the site database (0 from Turkey, 307 from the rest of the world) with Rodden rating, Ascendant, Sun and Moon, one page per person (Turkish)
- [Business People Birth Charts (İş insanları)](https://sirauysal.com/haritalar/unluler/is/): Birth charts of 61 business people from the site database (10 from Turkey, 51 from the rest of the world) with Rodden rating, Ascendant, Sun and Moon, one page per person (Turkish)
- [Astrologers Birth Charts (Astrologlar)](https://sirauysal.com/haritalar/unluler/astrolog/): Birth charts of 58 astrologers from the site database (4 from Turkey, 54 from the rest of the world) with Rodden rating, Ascendant, Sun and Moon, one page per person (Turkish)
- [Philosophers Birth Charts (Filozoflar)](https://sirauysal.com/haritalar/unluler/felsefe/): Birth charts of 36 philosophers from the site database (3 from Turkey, 33 from the rest of the world) with Rodden rating, Ascendant, Sun and Moon, one page per person (Turkish)
- [Religious Figures Birth Charts (Din önderleri)](https://sirauysal.com/haritalar/unluler/din/): Birth charts of 41 religious figures from the site database (3 from Turkey, 38 from the rest of the world) with Rodden rating, Ascendant, Sun and Moon, one page per person (Turkish)
- [Other Famous People Birth Charts (Diğer)](https://sirauysal.com/haritalar/unluler/diger/): Birth charts of 153 other famous people from the site database (29 from Turkey, 124 from the rest of the world) with Rodden rating, Ascendant, Sun and Moon, one page per person (Turkish)
- [Famous People by Sun Sign (Güneş Burcuna Göre Ünlüler)](https://sirauysal.com/haritalar/gunes-burcu/): Famous people's birth charts grouped into twelve lists by Sun sign, with exact degrees and Rodden rating, one page per sign (Turkish)
- [Famous People by Ascendant (Yükselen Burca Göre Ünlüler)](https://sirauysal.com/haritalar/yukselen/): Famous people's birth charts grouped by rising sign, only reliable birth times (Rodden AA, A, B), one page per sign (Turkish)
- [Turkey's Birth Chart, 29 October 1923](https://sirauysal.com/haritalar/turkiye/): Republic of Turkey chart (29 Oct 1923, 20:30 UTC+2, Ankara; Astro-Databank Rodden A) with the TBMM 1920 alternative in two time-zone versions, placements and essential dignities, and the next eclipses and Jupiter/Saturn transits in the chart, recalculated on every page load (Turkish)

## Ephemeris & Almanac

- [Transits](https://sirauysal.com/transitler/): Current planetary transits
- [Lunar Phases](https://sirauysal.com/ay-evreleri/): Current Moon phase information
- [Void of Course Moon](https://sirauysal.com/ay-boslukta/): Void-of-course Moon times
- [2026 Almanac](https://sirauysal.com/blog/2026-yillik-mundane-ongorusu): Annual mundane astrology almanac
- [Eclipse Calendar](https://sirauysal.com/tutulma-takvimi): Solar and lunar eclipse dates
- [Retrograde Dates](https://sirauysal.com/retro-tarihleri): Planetary retrograde periods
- [Transits (EN)](https://sirauysal.com/en/transits/)
- [Lunar Phases (EN)](https://sirauysal.com/en/lunar-phases/)
- [Void of Course Moon (EN)](https://sirauysal.com/en/void-of-course-moon/)

## Blog

55+ articles covering astrology education, planetary significations, zodiac signs, and technique explanations.

- [Blog Index](https://sirauysal.com/blog/): Turkish astrology blog
- [Blog Index (EN)](https://sirauysal.com/en/blog/): English astrology blog
- Topics include: planetary significations, zodiac signs, aspect theory, mundane astrology, astrocartography, and educational guides

## Additional Resources

- [SkyTerminal](https://sirauysal.com/skyterminal/): Real-time sky observation terminal
- [Library](https://sirauysal.com/kitaplik/): Recommended astrology book list
- [Celestial Geometry Guide](https://sirauysal.com/goksel-geometri-rehberi/): Guide to celestial geometry concepts
- [Free Birth Chart Calculator](https://sirauysal.com/ucretsiz-dogum-haritasi-hesaplama/): Free natal chart calculation
- [Links](https://sirauysal.com/links/): Useful astrology resources and links

## Technical

- Site is static HTML/CSS/JS, no server-side framework
- Planetary calculations use [astronomy-engine](https://github.com/cosinekitty/astronomy) (client-side)
- City database with 1009 cities and IANA timezone IDs for DST-aware calculations
- Most tools run entirely in the browser with no backend API calls
- Bilingual: Turkish (primary) and English with hreflang cross-references
- All pages available as `.md` (markdown) via content negotiation — append `.md` to any URL or send `Accept: text/markdown` header
- AI/LLM-friendly: GPTBot, ClaudeBot, Anthropic-AI, Google-Extended, PerplexityBot, OAI-SearchBot, ChatGPT-User all allowed via robots.txt with ContentSignals (ai-train=yes, ai-input=yes)
- Solar Fire .SFcht chart file import supported across 13 calculator tools via integrated Chart Library

## Optional

- [llms-full.txt](https://sirauysal.com/llms-full.txt): Extended version with glossary term list and fixed star catalog