HR Diagram Vocabulary

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Across
  1. 2. the graph showing the absolute magnitude plotted against the surface temperature for a group of stars.
  2. 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.
  3. 6. 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.
  4. 8. the intrinsic brightness of a celestial object.
  5. 9. the series of changes in the life.
  6. 10. an astronomical object consisting of a luminous spheroid of plasma held together by its own gravity.
Down
  1. 1. a very large star that is even brighter than a giant often despite being relatively cool.
  2. 3. a very large star of high luminosity and low surface temperature. Red giants are thought to be in a late stage of evolution when no hydrogen remains in the core to fuel nuclear fusion.
  3. 4. where the star's hydrogen is burned into helium.
  4. 7. a graphic representation of stars in the galaxy.