See Links page for various e-learning resources.See a small geogebra applet here about Analemma of the Sun.
Textbooks of Physics and Mathematics by NCERT, upto Class X for Juniors
Textbooks of Physics and Mathematics by NCERT, upto Class XII
for Seniors (calculus not necessary)
Fundamentals of Physics - Resnick and Halliday*
Concepts of Physics - H. C. Verma*
Universe - Roger A. Freedman and William J. Kaufmann IIIThe Physical Universe - Frank Shu
Astronomy: Principles and Practice - M. N. Roy and R. C.
Clark* (Stage II onwards)
Astronomy: Structure of the Universe - M. N. Roy and R. C.
Clark* (Stage II onwards)
Astronomy for the Beginners - Pradeep Nayak
There are many popular astronomy books published in most of
the regional languages. Students can learn basic astronomy through any
such good book.
* Some of the topics in these books may be more
advanced than the
typical class X (or XII for senior) level. Only refer the topics
covered in the school syllabus.