Across the Stars Down to Earth

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Across
  1. 2. / Most prominent star patterns in the sky
  2. 4. / Star patterns that have been discovered but have not been officially identified as constellation
  3. 7. / Group of stars that form a certain pattern
  4. 10. / Largest giant stars
  5. 13. / The distance light can travel in one year
  6. 15. / Belief in the positions of celestial body influence the people's personalities and shape their lives
  7. 16. / Refers to the belief that the positions of the Sun, Moon, and planets
  8. 17. / The scientific study of the objects in the universe
  9. 20. / It means "circle of animals in Greek"
Down
  1. 1. / An invisible object with very powerful gravitational force
  2. 3. / Famous constellation known as "The Hunter"
  3. 5. / Nearest star on Earth
  4. 6. / Small stars that are located on lower left of H-R diagram
  5. 8. / A hot luminous celestial body
  6. 9. / A spiral galaxy where the solar system belongs
  7. 11. / The apparent shift position of an object when viewed from two different positions
  8. 12. / Stars which explode violently
  9. 14. / A plot of the temperature of many stars against their luminosities
  10. 18. / A large cloud of gas and dust
  11. 19. / Stars which suddenly become very bright