All about the STARS

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Across
  1. 3. How bright a star appears from Earth, but not its true brightness.
  2. 5. The true brightness of a star if viewed from a standard distance.
  3. 8. How hot or cold a star is, often measured in units like Kelvin.
  4. 10. A small, dense star left over after a star like our Sun dies.
  5. 11. The temperature scale used to measure star temperatures in astronomy.
  6. 12. A star that is much larger and brighter than stars like our Sun.
Down
  1. 1. A way to describe the brightness of a star.
  2. 2. The longest stage in a star's life where it spends most of its time.
  3. 4. A cloud of gas and dust in space where stars are born.
  4. 6. A powerful explosion that occurs when a large star dies.
  5. 7. A measure of how much light a star emits; similar to its brightness.
  6. 9. A chart that shows the relationship between a star's brightness and temperature.