INDIAN CHRONOGRAPHY.
135
TABLE XX.A.
The length of each true sidereal solar month, from saṁkrānti to saṁkrānti, divided by 30; showing the time occupied by the sun in travelling one degree (1°).
For use in calculating tropical, or sāyana, saṁkrāntis.
[N.B.—The exact time is given in the Table, as this may be found useful for other purposes. In calculation for tropical saṁkrāntis the seconds may be left out of account as a rule, fractions above 30 s. being counted as one minute; and decimals may be worked only to four figures.]
| Name of sidereal month. | By the Ārya Siddhānta. | By the Sūrya Siddhānta. | ||||||||
| D. | H. | M. | S. | In decimals of a day. | D. | H. | M. | S. | In decimals of a day. | |
| 1 | 2 | 3 | ||||||||
| 1. Mēsha | 1 | 0 | 44 | 24 | 1.03083̇ | 1 | 0 | 44 | 53.6 | 1.03117̇ |
| 2. Vṛishabha | 1 | 1 | 7 | 15.2 | 1.04670̇37̇ | 1 | 1 | 8 | 10.4 | 1.047342̇59̇ |
| 3. Mithuna | 1 | 1 | 17 | 8.8 | 1.053573̇ | 1 | 1 | 18 | 56.8 | 1.054824̇07̇ |
| 4. Karka | 1 | 1 | 10 | 27.2 | 1.0489256̇ | 1 | 1 | 6 | 48.8 | 1.046398̇14̇ |
| 5. Siṁha | 1 | 0 | 39 | 40 | 1.0275463 | 1 | 0 | 48 | 53.6 | 1.0339537 |
| 6. Kanyā | 1 | 0 | 21 | 55.2 | 1.01522 | 1 | 0 | 21 | 11.2 | 1.014712̇96̇ |
| 7. Tulā | 0 | 23 | 55 | 21.6 | 0.9967̇ | 0 | 23 | 54 | 52.8 | 0.9964̇ |
| 8. Vṛiśchika | 0 | 23 | 36 | 24 | 0.98361̇ | 0 | 23 | 35 | 32 | 0.983009̇25̇ |
| 9. Dhanus | 0 | 23 | 28 | 49.6 | 0.97835138̇ | 0 | 23 | 27 | 15.2 | 0.9772̇59̇ |
| 10. Makara | 0 | 23 | 33 | 55.2 | 0.9818̇ | 0 | 23 | 33 | 30.4 | 0.9814935̇18̇ |
| 11. Kumbha | 0 | 23 | 50 | 48 | 0.9936 | 0 | 23 | 51 | 22.4 | 0.994009̇25̇ |
| 12. Mīna | 1 | 0 | 16 | 15.4 | 1.01128935̇18̇ | 1 | 0 | 16 | 58.0186 | 1.011782622 |
