Stars

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Across
  1. 6. The name of the measurement that scientists use to determine a star's brightness.
  2. 9. A fictional baseball team in a popular cartoon.
  3. 10. The product of an electron and a positron.
Down
  1. 1. The type of school that apparent magnitude is measured on.
  2. 2. When electrons have too much energy to stay bound to protons inside of a star, they form this substance.
  3. 3. YEAR The measurement used for distance in Astronomy.
  4. 4. A red giant will typically have enough helium to last this amount of years.
  5. 5. The opposing force to gravity in the structure of a star.
  6. 7. A device used to analyse starlight.
  7. 8. The force that holds things to the ground on Earth.