Stars & Stellar Physics

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Across
  1. 4. A cloud of glowing gas after a stellar explosion
  2. 6. How bright a star appears from Earth
  3. 8. A group of stars held together by gravity
  4. 11. The range of wavelengths revealing a stars composition
  5. 12. A particle of light energy
  6. 13. A cloud of gas and dust where stars are born
  7. 14. A small dense remnant spins and emits radio pulses
  8. 15. A star system containing two stars orbiting each other
Down
  1. 1. The outer atmosphere of the Sun visible during eclipses
  2. 2. The nuclear process powering every star
  3. 3. A star that regularly changes in brightness
  4. 5. A massive stellar explosion the death of a large star
  5. 7. A star in its final stage hot dense and white
  6. 9. The measure of true stellar brightness regardless of distance
  7. 10. A young star still forming inside its nebula
  8. 11. The Sun our nearest star