Unit 1…………………………………………………… 7
Introduction to Ancient Indian Astronomy
1.1 Introduction
1.2 Astronomy in India: A Survey
1.3 Astronomical Practices in India
1.4 Some Ancient Indian Astronomers and their works
1.5 Later development
Unit 2……………………………………………………. 33
Time in Indian Astronomy
2.1 Introduction
2.2 Concept of Rashi and Nakshatra
2.3 Time in Indian Astronomy
2.4 Civil day
2.5 Sidereal day
2.6 Solar year and civil calendar
2.7 Solar month and lunar month
2.8 lunar year
2.9 Adhikmaas
2.10 Kshayamass
2.11 Yuga system
2.12 Indian eras
2.13 Time on microscopic scale
Unit 3……………………………………………………. 53
Calendar in Indian Astronomy
3.1 Introduction
3.2 Hindu calendar
3.3 Indian calendar and panchang