3.9 Astrophysics — Revision Notes

Clear revision notes for all 14 subtopics: the core notes with every diagram, and a “How confident am I?” self-check against the specification. Want practice questions with answers? See Revision Notes + Practice.

AQA A-Level Physics · Revision notes · Free · PDF

1. 3.9.1.1 Astronomical Refracting Telescope
2. 3.9.1.2 Reflecting Telescopes
3. 3.9.1.3 Radio IR UV Xray Telescopes
4. 3.9.1.4 Large Diameter Telescopes
5. 3.9.2.1 Classification By Luminosity
6. 3.9.2.2 Absolute Magnitude
7. 3.9.2.3 Black Body Radiation
8. 3.9.2.4 Stellar Spectral Classes
9. 3.9.2.5 HR Diagram
10. 3.9.2.6 Supernovae Neutron Stars Black Holes
11. 3.9.3.1 Doppler Effect
12. 3.9.3.2 Hubble's Law
13. 3.9.3.3 Quasars
14. 3.9.3.4 Detection of Exoplanets