Lagadha

Vedāṅga Jyotiṣa, or Jyotiṣavedāṅga (Devanagari: वेदाङ्ग ज्योतिष) (VJ), is one of earliest known Indian texts on astronomy (Jyotisha). The extant text is dated to the final centuries BCE, but it may be based on a tradition reaching back to about 700-600 BCE.The text is foundational to Jyotisha (astronomy), one of the six Vedanga disciplines. Its author is traditionally named as Lagadha.