Page:Sewell Indian chronography.pdf/12
This page has been proofread, but needs to be validated.
VIII
TABLE OF CONTENTS.
| Page | |
| The sixty-year cycle of Jupiter—General remarks | 46 |
| Calculation by the Sūrya Siddhānta without the bīja | 49 |
| Calculation by the Sūrya Siddhānta with the bīja | 52 |
| Calculation by the First Ārya Siddhānta or Āryabhaṭīya | 53 |
| Calculation by the Original Sūrya Siddhānta | 55 |
| Calculation by the Brāhma Siddhānta and Siddhānta Śirōmaṇi | 58 |
| Calculation by the Second Ārya Siddhānta | 62 |
| Calculation with reference to mean Mēsha saṁkrānti | 64 |
| Difference in reckoning in Northern and Southern India since about A.D. 908 | 64 |
| The twelve-year cycle of Jupiter | 65 |
| Jupiter's mean longitude | 66 |
| Jupiter's true longitude | 69 |
| Note on preparation of Table XXXVIII. B., being a continuation of Table I. of the Indian Calendar to A.D. 1950 | 72 |
| The lagna | 74 |
| Hints | 75 |
| Examples— | |
| Solar reckoning: | |
| 1, 2. Apparent Mēsha saṁkrānti. Time of—by different authorities | 81 |
| 3, 4. Apparent Mēsha saṁkrānti. Time of—in very early years | 81 |
| 5, 6. Mean Mēsha saṁkrānti. Time of—by different authorities | 82 |
| 7, 8. Conversion of results by the Ārya into results by the Sūrya Siddhānta, and vice versa | 83 |
| 9, 10. Tropical, or sāyana, Mēsha saṁkrāntis | 84 |
| 11, 12. Other "true" saṁkrāntis | 86 |
| 13, 14. Conversion (as above) | 86 |
| 15, 16. Other mean saṁkrāntis | 87 |
| 17, 18. Conversion (as above) | 87 |
| 18a, 18b. Other tropical saṁkrāntis | 88 |
| Note to Examples 9, 10, 18a, 18b | 90 |
| 19. The European civil day corresponding to a given Hindū solar day | 90 |
| Luni-solar reckoning: | |
| 20—22a. The true tithi current at any moment, and the times of its beginning and ending in mean time | 91 |
| 23. How to find if a true tithi was added or suppressed | 95 |
| 24. The mean tithi current at any moment, and the times of its beginning and ending | 97 |
| 26. To prove a date where a given tithi is coupled with a solar date | 99 |
| "True" intercalations and suppressions of lunar months by the Ārya Siddhānta— | |
| 27. A common year | 100 |
| 28. Year with intercalation | 101 |
| 29. Year with suppression | 103 |
| The same by the Sūrya Siddhānta— | |
| 30. A common year | 105 |
| 31. Year with intercalation | 105 |
| 32. Year with suppression | 106 |