पञ्चसिद्धान्तिका (आचार्य वराहमिहिर - सूर्य, रोमक, पौलिश, वासिष्ठ एवं पितामह सिद्धान्त)

298 PAÑCASIDDHĀNTIKĀ XVI.11 Deduction for 3 nāḍīs, 9 vināḍīs − 1′ 39.5″ Less 1917‴ ÷ 5 − 6″ The epoch constant = 2ʳ 15° 34′ 58″ There is agreement. Mercury: Yuga revolutions 1,57,79,17,800 × 100 ÷ 8997 = 1,79,36,998 rev. 11ʳ 21° 41′ 33″ Rev. Correction = 1,79,36,99 × 4½‴ = + 1ʳ 13° 41′ 15″ The Yuga cycles = 1,79,37,000 Rev. 0ʳ 5° 22′ 48″ There is fair agreement with the Ārdharātrika-pakṣa etc. with an excess of 5° 22′ 48″ in the yuga, which need not be considered great in a karaṇa rule. 4 7/16 instead of 4½‴ would have taken this difference also into account. Epoch constant for Mercury 1,79,37,000 ( 1/1200 + 1/(600 × 1200) ) = 14,972 rev., 4ʳ 28° 30′ 0″ Subtracting for the excess 3 nāḍīs, 9 vināḍīs − 23′ 53″ For 1/16 repeat the correction + 16″ Epoch constant = 4ʳ 28° 17′ 23″ Here the constant seems to have been given to nearest minute. Venus: Yuga revolutions 1,57,79,17,800 × 10 ÷ 2247 70,22,331 rev. 1ʳ 8° 55′ 54″ Revolution correction = 70,22,331 × 10½ = 56 Rev. 10ʳ 21° 47′ 52″ Yuga cycles = 70,22,388 0ʳ 0° 43′ 46″ There is a small error of 43′ 46″, negligible in the long period of yuga, owing to the karaṇa rule. 10 85/178 would have been very correct. Epoch constant for Venus Epoch constant, 70,22,388 ( 1/1200 + 1/(600 × 1200) ) = 5861 rev. 8ʳ 27° 35′ 38″.4 Less for 3 nāḍīs, 9 vināḍīs − 5′ 2″ Extra in the correction + 2′ 4″ Epoch correction (in full agreement) = 8ʳ 27° 30′ 39″ In the Sun, Moon, Rāhu, and Moon’s apogee too we see much exact agreement with Ārdharāt- rika-pakṣa, Khaṇḍakhādyaka and Bhaṭṭotpala-quoted Paulīśa, from which we can conclude that the source of VM’s Saura is the Old Saura-siddhānta.