Changes

The practical way of measuring the time is mentioned as the time taken by a specified quantity of water to flow through the orifice of a specified water-clock as one nadika i.e. 1/60 part of a day.  

The practical way of measuring the time is mentioned as the time taken by a specified quantity of water to flow through the orifice of a specified water-clock as one nadika i.e. 1/60 part of a day.  

A yuga of 5 solar years is mentioned which consists of 67 lunar sidereal cycles, 1830 days, 1835 sidereal days, 62 sinodic months, 1860 tithis, 135 solar nakshatras, 1809 lunar nakshatras and 1768 risings of the Moon. The text also mentions that there are 10 ayanas and 10 vishuvas and 30 rtus in a yuga.<ref name=":1" /> The names of the five years of a yuga being<ref name=":0">Balachandra Rao, S. (2017 Third Edition) Indian Mathematics and Astronomy. Benguluru : Bhavan's Gandhi Center of Science & Human Values</ref>

A yuga of 5 solar years is mentioned which consists of 67 lunar sidereal cycles, 1830 days, 1835 sidereal days, 62 sinodic months, 1860 tithis, 135 solar nakshatras, 1809 lunar nakshatras and 1768 risings of the Moon. The text also mentions that there are 10 ayanas and 10 vishuvas and 30 rtus in a yuga.<ref name=":1" /><ref>Kuppanna Sastry, T. S. and Sarma, K. V. (1985) ''Vedanga Jyotisa of Lagadha in its Rk and Yajus Recensions with the translation and notes of Prof. T. S. Kuppanna Sastry.'' New Delhi : Indian National Science Academy</ref> The names of the five years of a yuga being<ref name=":0">Balachandra Rao, S. (2017 Third Edition) Indian Mathematics and Astronomy. Benguluru : Bhavan's Gandhi Center of Science & Human Values</ref>

#संवत्सरः॥ Samvatsara

#संवत्सरः॥ Samvatsara

#परिवत्सरः ॥ Parivatsara

#परिवत्सरः ॥ Parivatsara

The present day yuga system consisting of the chaturyugas and mahayugas (as seen in puranic references) is discussed under the heading [[Kala (कालः)|Kala]].

The present day yuga system consisting of the chaturyugas and mahayugas (as seen in puranic references) is discussed under the heading [[Kala (कालः)|Kala]].

The Vedic astronomers also noted that the shortest day was at the winter solistice when the seasonal year Shishira began with Uttarayana and rose to a maximum at the summer solistice. A glossary is given to explain the astronomical terms used in this article.

The Vedic astronomers also noted that the shortest day was at the winter solistice when the seasonal year Shishira began with Uttarayana and rose to a maximum at the summer solistice. A glossary is given in the last section to explain the astronomical terms used in this article.

== Siddhantas ==

== Siddhantas ==