AQA 7408 A-Level Physics coverage of astrophysics (3.9 — optional A): refracting and reflecting astronomical telescopes, non-optical telescopes (radio, IR, UV, X-ray), classification of stars by luminosity and magnitude, stellar spectra and the Stefan and Wien laws, stellar evolution and the Hertzsprung-Russell diagram, cosmological distance and the Doppler effect, Hubble's law and Big-Bang cosmology, exoplanets, quasars, supernovae and black holes. Optional unit — students only need this course if their school chose option A.
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