The Astronomical Observatories of Jai Singh c22.s1.t6: D (6). Length of the year

c22.s1.t6.1

| | D. | H. | M. | S. | |
| Hipparchus | 365 | 5 | 55 | 12 | Tropical. |
| Ptolemy | 365 | 5 | 46 | 24 | " |
| | 365 | 6 | 9 | 48·6 | Sidereal. |
| Romaka Siddhānta | 365 | 5 | 55 | 12 | " |
| Paulīśa Siddhānta | 365 | 6 | 12 | 36 | Sidereal. |
| Āryabhaṭa | 365 | 6 | 12 | 30 | " |
| Brahma Gupta | 365 | 6 | 12 | 30·915 | " |
| al-Battānī | 365 | 6 | 12 | — | " |
| Siddhānta Śiromaṇi | 365 | 6 | 12 | 9 | " |
| Astrolabe | 365 | 5 | 50 | 12·4 | Tropical. |
| *Approximately correct values*— | | | | | |
| Tropical year | 365 | 5 | 48 | 45·98. | |
| Sidereal year | 365 | 6 | 9 | 9·5. | |