the dating of the "vedanga jyotisha" is relevant for the dating of the vedic texts. the "vedanga jyotisha" describes the winter solstice for the period of ca. 1400 bce. this description has been used to date the "vedanga jyotisha". according to michael witzel, the question is "whether the description as given in the jyotisha is also the date of the text in which it is transmitted. it is written in two recensions – rigveda recensions and yajurveda recensions. rigveda recensions and yajurveda recensions have same verses except for eight additional verses in the yajurveda's one". t. k. s. sastry and r. kochhar suppose that the "vedanga jyotisha" was written in the period that it describes, and therefore propose an early date, between 1370 and 1150 bce. david pingree dates the described solstice as about 1180 bce, but notes that the relevance of this computation to the date of the "vedanga jyotisha" is not evident. the estimation of 1400-1200 bce has been followed by others, with subbarayappa adding that the extant form can possibly be from 700-600 bce.