Across
- 5. - Type of star that results from core collapse of a massive star
- 7. - Danish astronomer who co-created the stellar classification diagram
- 9. - Indian physicist who calculated the white dwarf mass limit
- 10. - Quantum pressure that prevents white dwarfs from collapsing
- 11. - The technique of splitting starlight to reveal its chemical composition
- 12. - A star that periodically varies in brightness
- 13. - The visible surface layer of the Sun
Down
- 1. - The balance between outward radiation pressure and inward gravity
- 2. - The point of no return surrounding a black hole
- 3. - A protostar named after a Mexican astronomer
- 4. - A rotating neutron star emitting pulses of radiation
- 6. - Process that creates elements heavier than hydrogen in stars
- 8. - The layer below the photosphere where energy travels by radiation