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Astronomy in India

CBSE · Class 11 · Knowledge Traditions and Practices of India

Complete topic list for Astronomy in India in CBSE Class 11 Knowledge Traditions and Practices of India. Key concepts, sub-topics, and what to focus on for board exams.

126 questions82 flashcards5 concepts

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4 Topics · CBSE Class 11 Knowledge Traditions and Practices of India

Topics in Astronomy in India

1

Indian calendar and timekeeping

  • The Hindu calendar is a luni-solar calendar.
  • A lunar month is used for festivals and auspicious days, while a solar month is used for daily life.
  • The sidereal period of the Moon is 27.3 days.
2

Explanation of eclipses and related ideas

  • Solar eclipse occurs when the Moon is between the Earth and the Sun.
  • Lunar eclipse occurs when the Earth is between the Moon and the Sun.
  • Eclipses occur only on full moon or new moon days.
3

Uttarāyaṇa, Dakṣiṇāyana, and seasonal change

  • The duration of sunlight in a day changes throughout the year.
  • Longer sunlight hours coincide with summer, and shorter sunlight periods occur in winter.
  • The position of sunrise shifts towards the north, then south, and then north again in a yearly cycle.
4

Ancient Indian astronomers and mathematicians

  • Āryabhaṭṭa was born in 476 C.E. near modern Patna.
  • Āryabhaṭṭa wrote Āryabhaṭīyam at age 23.
  • Āryabhaṭṭa introduced the concept of the celestial sphere, large number units, week days, and the adhikamāsa scheme.

Key Concepts

Central concept: Astronomy in India

Ancient Indian astronomyIndian calendarMoon and lunar motionSun and solar motionEclipsesImportant astronomersMathematical support for astronomyKerala School of Astronomy

Frequently Asked Questions

What are the important topics in Astronomy in India for CBSE Class 11 Knowledge Traditions and Practices of India?
Astronomy in India covers several key topics that are frequently asked in CBSE Class 11 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Astronomy in India — CBSE Class 11 Knowledge Traditions and Practices of India?
Understand the core concepts first, then work through the 126 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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