Astronomy in India
CBSE · Class 11 · Knowledge Traditions and Practices of India
All formulas from Astronomy in India in CBSE Class 11 Knowledge Traditions and Practices of India. Key equations, constants, and identities for board exam preparation.
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Formulas
Indian calendar and time units
Sidereal period of moon = 27.3 days
Orbital period of moon seen from Earth = 29.5 days
Solar year ≈ 365.25 days
Lunar year ≈ 354 days
Extra month needed about every 3 years
Mathematics linked to astronomy
√10 = 3.162277 as approximation for pi
pi to four decimal places = 3.1416
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Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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