Vedanga Jyotisha lunisolar calendar
Calendario lunisolar del Vedanga Jyotisha
- Date
- c. 400 BCE · confidence low
- Place
- Northern India, India
- Credited to
- Lagadha
- People
- 👤 Lagadha1200 BCE–
- Field
- Cosmos & Earth
⚠️ Disputed: the sources disagree.
What it is
The oldest Indian astronomical text: it defines a five-year cycle with intercalary months to align the lunar year with the solar year and places the solstices relative to the lunar mansions (nakshatras). It fixed the date of Vedic rituals.
The solstice positions would point to 1400-1200 BCE, but the surviving text is usually dated to around the 4th century BCE.
What it led to
- Hindu religious calendars
- mathematical astronomy of the siddhantas