Bharatiya Jyotihshastra (History of Indian Astronomy), translated by R. V. Vaidya v2.c12.s5.49
Bhāratīya Jyotiḥśāstra (History of Indian Astronomy), translated by R. V. Vaidya v2.c12.s5.49
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v2.c12.s5.49
∗ Meton fixed 6940 as the number of days in a cycle of 19 solar years (Indian Eras by Cunningham, page 43). This makes the length of the year 365d 15gh 47 368pal. Calippus made an improvement in the Metonic cycle by discovering the cycle of 76 years by which the length of the year became exactly 365d—15gh (Indian Eras, p. 43). It is worth noting that none of our astronomical works have adopted these cycles or lengths of year.