Bhāskara II
Several authors have described precession to be near 200,000revolutions in a Kalpa of 4,320,000,000years, which would be a rate of = 60″/year. They probably deviated from an even 200,000revolutions to make the accumulated precession zero near 500. Visnucandra () mentions 189,411revolutions in a Kalpa or 56.8″/year. Bhaskara I () mentions [1]94,110revolutions in a Kalpa or 58.2″/year. Bhāskara II () mentions 199,699revolutions in a Kalpa or 59.9″/year.