Vocab

123456789
Across
  1. 1. a star of relatively great size and luminosity compared to ordinary stars of the main sequence, and 10–100 times the diameter of the sun
  2. 3. the group in which a star is classified according to its spectrum, especially using the Harvard classification
  3. 5. a small very dense star that is typically the size of a planet. A white dwarf is formed when a low-mass star has exhausted all its central nuclear fuel and lost its outer layers as a planetary nebula
  4. 6. the average kinetic energy of all the atoms or molecules of that substance
  5. 8. a series of star types to which most stars belong, represented on a Hertzsprung–Russell diagram as a continuous band extending from the upper left (hot, bright stars) to the lower right (cool, dim stars).
  6. 9. the magnitude (brightness) of a celestial object as it would be seen at a standard distance of 10 parsecs.
Down
  1. 2. the magnitude of a celestial object as it is actually measured from the earth.
  2. 4. the quality or state of giving out or reflecting light.
  3. 7. a small, old, relatively cool star.