TY - GEN AU - Basu, Baidyanath AU - Chattopadhyay, Tanuka & Biswas Sudhindra Nath TI - An Introduction to Astrophysics AV - 523.01 BAS/A U1 - 523.01 PY - 2023/// CY - New Delhi PB - PHI Learnings KW - Eclipsing Binary KW - Solar Corona KW - Solar Flares N1 - 1) Astronomical Instruments 2) Basic Physics 3) Magnitudes motions and distances of stars 4) The Sun 5) Variable Stars ER -