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| Special Remarks | 491 |
| Method for Calculating the Diagram Lines | 495 |
| Procedure for Observing the Moon and Other Bodies | 495 |
| Conclusion of the Chapter | 497 |
8. Chapter on the Moon's Shadow: 501-514
| Purpose of the Commencement | 501 |
| Statement of Necessary Procedures | 501 |
| Visibility and Invisibility of the Moon | 502 |
| Calculation of the Time of the Moon's Elevation | 503 |
| Derivation of the Moon's Gnomon The gnomon, or 'Shanku', is a vertical rod used to measure the altitude of celestial bodies via their shadows. | 504 |
| Derivation of the True Gnomon for the Sun and Moon | 505 |
| Method for Calculating the Moon's True Shadow | 508 |
| Method for Calculating the Mean Shadow | 509 |
| Conclusion of the Chapter | 511 |
9. Chapter on Planetary Conjunctions: 515-567
| Mean Latitude and Mean Angular Diameters of the Planets | 515 |
| Correction of the Planetary Angular Diameters | 517 |
| For Determining the Time of Conjunction and the Result of Motion | 521 |
| For Equalizing the Longitudes of Two Planets via Motion Corrections | 523 |
| Derivation of the True Nodes | 525 |
| Method for Calculating Mean Latitude from Mathematically Derived Nodes | 527 |
| Calculation of Planetary Latitude at the Time of Conjunction | 518 |
| North-South Distance Between Two Planets at Conjunction | 544 |
| Illustration showing why Conjunction on the Ecliptic Pole Circle is not ideal | 544 |
| Conjunction on the Vertical Circle | 545 |
| Special Considerations in Planetary Conjunctions | 552 |
| Specifics in Calculating Parallax for the Time of Conjunction | 555 |
| Calculation of Parallax in Planetary Conjunctions | 557 |
| Description of Parallax for the Purpose of Correction | 558 |
| Calculation of Half-Duration and Total Obscuration in Conjunctions | 560 |
| Calculation of the True Conjunction | 561 |
| Statement on When a Conjunction Occurs | 546 |
| Conclusion of the Chapter | 565 |
The vocabulary section below lists technical terms used in the index, focusing on shadow measurements (Chhaya), planetary meetings (Yuti), and the mathematical corrections (Sphuta) required for accuracy.
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