title:: Panchang Series — Master Index & Reading Guide
tags:: Panchang, Index, Guide, Series
audience:: All levels
Panchang Series — Master Index & Reading Guide
Series Overview
This is a comprehensive 4-book series on Indian Panchang (calendar systems), progressing from absolute beginner to PhD-level researcher. Each book builds upon the previous, with cross-references throughout.
Book Descriptions
Book 1: Panchang Associate (Arjun's Cosmic Calendar)
| Property | Details |
|---|
| Style | Picture-book, story-driven |
| Character | Arjun (10-year-old boy) and his Dadi (grandmother) |
| Audience | Complete beginners, zero knowledge assumed |
| Chapters | 9 chapters |
| Focus | Intuitive understanding, visual learning |
| Mermaid Diagrams | 15+ diagrams |
| Tables | 20+ reference tables |
What You'll Learn:
- How the Moon moves through phases (Amavasya → Poornima)
- What the 12 Rashis and 27 Nakshatras are
- Why the Indian calendar uses both Sun and Moon
- The science behind Kumbh Mela and Shani Sade Saati
- What the five limbs of Panchang are
- How to use Stellarium for sky observation
Key Topics Covered:
| Topic | Chapter |
|---|
| Moon phases (Shukla/Krishna Paksha) | 1 |
| Poornima & Amavasya | 1 |
| Solar path & Zodiac (Rashis) | 2 |
| Nakshatras (27 lunar mansions) | 2 |
| Kumbh Mela astronomy | 3 |
| Shani Sade Saati | 3 |
| Basic astronomy (Lat/Long, Equator) | 4 |
| Solar Calendar (Soura Maana) | 5 |
| Lunar Calendar (Chandra Maana) | 5 |
| Panchang (5 limbs) | 6 |
| Adhika Maas | 7 |
| Stellarium basics | 8 |
Book 2: Panchang Bachelor (Mastering the Calendar)
| Property | Details |
|---|
| Style | Intermediate, technical but accessible |
| Audience | Those who completed Associate level |
| Parts | 4 parts, 9 chapters |
| Focus | Calculations, applications, software |
| Code Examples | Python snippets |
| Tables | 30+ detailed tables |
What You'll Learn:
- Celestial mechanics: Earth's motions, ecliptic, obliquity
- Why Tithis vary in length (19-26 hours)
- Complete Nakshatra system with ruling planets and deities
- Tithi, Yoga, Karana calculations with formulas
- Festival calendar rules
- Muhurta (electional astrology)
- Advanced Stellarium techniques
- Professional Panchang software comparison
Key Topics Covered:
| Topic | Part/Chapter |
|---|
| Earth's motions (rotation, revolution, precession) | Part I, Ch 1 |
| Ecliptic and obliquity | Part I, Ch 1 |
| Lunar orbital parameters | Part I, Ch 2 |
| Tithi variation explanation | Part I, Ch 2 |
| Nakshatra technical framework | Part I, Ch 3 |
| Pada system (Navamsha) | Part I, Ch 3 |
| Tropical vs Sidereal year | Part II, Ch 4 |
| Ayanamsha calculation | Part II, Ch 4 |
| Solar months (Sankranti-based) | Part II, Ch 4 |
| Lunar month types | Part II, Ch 5 |
| Paksha system details | Part II, Ch 5 |
| Tithi calculation formula | Part II, Ch 6 |
| Yoga calculation formula | Part II, Ch 6 |
| Karana calculation formula | Part II, Ch 6 |
| Festival calendar rules | Part III, Ch 7 |
| Muhurta system | Part III, Ch 8 |
| Advanced Stellarium | Part III, Ch 9 |
| Panchang software comparison | Part III, Ch 9 |
Book 3: Panchang Master (Advanced Calculations & History)
| Property | Details |
|---|
| Style | Advanced, academic |
| Audience | Serious practitioners, researchers |
| Parts | 5 parts, 11 chapters |
| Focus | History, mathematics, research methods |
| Code Examples | Detailed Python implementations |
| Tables | 40+ technical tables |
What You'll Learn:
- Evolution of Indian astronomy over 5,000 years
- Surya Siddhanta calculation methods and accuracy
- Aryabhata's revolutionary contributions
- Precise planetary position calculations
- Ayanamsha debate and different systems
- Ephemeris reading and interpolation
- Calendar reform issues
- Kumbh Mela astronomical deep dive
- Shani Sade Saati orbital mechanics
- Professional software setup
- Research methodology
Key Topics Covered:
| Topic | Part/Chapter |
|---|
| Vedanga Jyotisha (1500 BCE) | Part I, Ch 1 |
| Surya Siddhanta (500 CE) | Part I, Ch 1 |
| Aryabhatiya contributions | Part I, Ch 2 |
| Pancha Siddhantika | Part I, Ch 3 |
| Surya Siddhanta algorithms | Part II, Ch 4 |
| Mean longitude calculations | Part II, Ch 4 |
| Tithi/Nakshatra/Yoga/Karana code | Part II, Ch 4 |
| Ayanamsha systems comparison | Part II, Ch 5 |
| Ayanamsha formula details | Part II, Ch 5 |
| Ephemeris reading | Part II, Ch 6 |
| Interpolation methods | Part II, Ch 6 |
| Calendar reform issues | Part III, Ch 7 |
| Regional variations | Part III, Ch 7 |
| Kumbh Mela deep dive | Part III, Ch 8 |
| Shani Sade Saati mechanics | Part III, Ch 9 |
| JHora setup and features | Part IV, Ch 10 |
| Parashara's Light features | Part IV, Ch 10 |
| Solar Fire features | Part IV, Ch 10 |
| Research methodology | Part V, Ch 11 |
Book 4: Panchang PhD Monograph (A Forensic Analysis)
| Property | Details |
|---|
| Style | Formal monograph, research paper |
| Audience | Researchers, scholars, experts |
| Sections | 10 sections + 2 appendices |
| Focus | Evidence-based analysis, formal proofs |
| Code Examples | Production-quality Python + SQL |
| References | Primary sources cited |
What You'll Learn:
- Formal mathematical definitions of Panchang components
- Surya Siddhanta vs modern ephemeris comparison
- Statistical analysis of Ayanamsha systems
- Computational framework implementation
- Validation against published Panchangs
- Research methodology for calendar studies
Key Topics Covered:
| Topic | Section |
|---|
| Coordinate systems (Sayana/Nirayana) | §2.1 |
| Lunar motion parameters | §2.2 |
| Solar motion formulas | §2.3 |
| Planetary mean motions (SS vs Modern) | §2.4 |
| Tithi formal definition | §3.1 |
| Vara algorithm | §3.2 |
| Nakshatra calculation with code | §3.3 |
| Yoga calculation with code | §3.4 |
| Karana calculation with code | §3.5 |
| Historical Ayanamsha development | §4.1 |
| Modern Ayanamsha systems | §4.2 |
| Ayanamsha comparative analysis | §4.3 |
| Precession formula (IAU 2006) | §4.4 |
| Adhika Maas algorithm | §5.1 |
| Regional variations | §5.2 |
| Festival calendar analysis | §6.1 |
| Festival drift statistics | §6.2 |
| Swiss Ephemeris integration | §7.1 |
| Validation results | §7.2 |
| Headline findings | §8.1 |
| Discussion | §9.1 |
| Open questions | §10 |
| SQL query examples | Appendix A |
| Technical glossary | Appendix B |
Reading Guide
Path 1: Complete Beginner → Expert (Recommended)
Book 1 (Associate) → Book 2 (Bachelor) → Book 3 (Master) → Book 4 (PhD)
Time Investment:
- Book 1: 2-3 hours (quick read)
- Book 2: 5-8 hours (with practice)
- Book 3: 10-15 hours (with code)
- Book 4: 20+ hours (research study)
Path 2: Quick Overview (Just Want to Understand)
Book 1 (Associate) → Software Guide → Done
Path 3: Practical Application (Want to Use Panchang)
Book 1 (Associate) → Book 2 (Bachelor, Part III only) → Software Guide
Path 4: Research Focus
Book 3 (Master) → Book 4 (PhD) → Software Guide (programming sections)
Path 5: Software Developer
Book 2 (Bachelor, formulas) → Book 4 (PhD, code examples) → Software Guide (libraries)
Cross-Reference Map
By Topic
| Topic | Associate | Bachelor | Master | PhD |
|---|
| Moon phases | Ch 1 | Part I, Ch 2 | — | §2.2 |
| Nakshatras | Ch 2 | Part I, Ch 3 | Part II, Ch 4 | §3.3 |
| Kumbh Mela | Ch 3 | — | Part III, Ch 8 | §4.4 |
| Shani Sade Saati | Ch 3 | — | Part III, Ch 9 | — |
| Solar calendar | Ch 5 | Part II, Ch 4 | Part II, Ch 4 | §2.3 |
| Lunar calendar | Ch 5 | Part II, Ch 5 | Part II, Ch 4 | §2.2 |
| Panchang (5 limbs) | Ch 6 | Part II, Ch 6 | Part II, Ch 4 | §3 |
| Adhika Maas | Ch 7 | Part II, Ch 5 | Part III, Ch 7 | §5.1 |
| Ayanamsha | — | Part II, Ch 4 | Part II, Ch 5 | §4 |
| Stellarium | Ch 8 | Part III, Ch 9 | Part IV, Ch 10 | — |
| Festival rules | — | Part III, Ch 7 | Part III, Ch 7 | §6.1 |
| Muhurta | — | Part III, Ch 8 | — | — |
| Software | Ch 8 | Part III, Ch 9 | Part IV, Ch 10 | §7.1 |
By Skill Level
| Skill | Book | Specific Chapter |
|---|
| Read a Panchang | Associate | Ch 6 |
| Understand festivals | Associate | Ch 5 |
| Use Stellarium | Associate | Ch 8 |
| Calculate Tithi | Bachelor | Part II, Ch 6 |
| Choose Muhurta | Bachelor | Part III, Ch 8 |
| Read ephemeris | Master | Part II, Ch 6 |
| Implement algorithms | Master | Part II, Ch 4 |
| Research Ayanamsha | Master | Part II, Ch 5 |
| Publish research | PhD | §8-§10 |
| Build software | PhD | §7.1 |
Glossary Quick Reference
| Term | Simple Definition | Technical Definition |
|---|
| Tithi | Lunar day | 12° Moon-Sun elongation |
| Vara | Day of week | Planetary lord of day |
| Nakshatra | Moon mansion | 13°20' ecliptic segment |
| Yoga | Sun+Moon combo | 13°20' combined longitude |
| Karana | Half tithi | 6° elongation increment |
| Paksha | Fortnight | 15 Tithis (Shukla or Krishna) |
| Poornima | Full Moon | 180° elongation |
| Amavasya | New Moon | 0° elongation |
| Rashi | Zodiac sign | 30° ecliptic segment |
| Ayanamsha | Precession correction | Sayana - Nirayana |
| Adhika Maas | Extra month | Month without Sankranti |
| Sankranti | Sun sign entry | Sun enters new Rashi |
| Muhurta | Auspicious time | 48-minute period |
| Soura Maana | Solar calendar | Sun-based measurement |
| Chandra Maana | Lunar calendar | Moon-based measurement |
File Locations
| File | Location |
|---|
| Book 1 (Associate) | Book1-Associate/Panchang Associate Book.md |
| Book 2 (Bachelor) | Book2-Bachelor/Panchang Bachelor Book.md |
| Book 3 (Master) | Book3-Master/Panchang Master Book.md |
| Book 4 (PhD) | Book4-PhD/Panchang PhD Monograph.md |
| Software Guide | Software-Guides/Panchang Software Tools Reference Guide.md |
| This Index | Master Index & Reading Guide.md |
Logseq Links
All books are cross-linked in Logseq:
Next Steps
If you're a beginner: Start with Book 1 (Associate)
If you want quick reference: Use the Software Guide
If you're doing research: Start with Book 3 (Master) or Book 4 (PhD)
If you're building software: See Book 4 (PhD) §7.1 and Software Guide §6
This index is part of the Panchang series. All books are available in the same directory.