stars and constellations

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Across
  1. 2. A characteristic of stars that indicates its surface temperature
  2. 3. The fourth brightest star
  3. 6. Detects spectral lines that are used by astronomers to determine the composition of stars
  4. 7. Refers to the halfman, halfhorse creature in Greek mythology and is the 9th largest constellation
  5. 9. The rate at which a star radiates energy.
  6. 13. Brightness of the star as seen by an observer from Earth
  7. 15. Movement of the earth around the sun that determines which constellations can be seen at various times of the year
  8. 16. A recognized, but not official, grouping of stars.
  9. 18. the production of new elements in stars through fusion reactions
  10. 21. A massive ball of glowing hydrogen and helium of extremely high temperatures, held together by its own gravity
  11. 22. Devised a scale of 16 to describe the apparent magnitude of a star
  12. 25. the constellation that makes up the stern of the boatshaped constellation
  13. 26. The color of the hottest stars
  14. 27. A star located at the tip of the handle of Ursa Minor
  15. 28. Constellations that can be seen all year round
  16. 31. Branch of natural science that deals with celestial objects, space and the physical universe as a whole
  17. 32. people who study the sky. they employ the scientific method to make measurements and test their theories
  18. 34. the third largest known constellation and is easy to see.
  19. 35. Referred to as the “window to the future” before formal science came in
  20. 36. The “Morning Star”
  21. 38. in this hemisphere, there is no polar star as a reference point
Down
  1. 1. Latin for “keel” and is the 34th largest constellation
  2. 3. scale for measuring actual brightness of stars without considering their distance
  3. 4. Occurs in the sun where hydrogen fuses to form helium, releasing energy
  4. 5. A pseudoscience that determines the influence of the state of the stars and the planets at the time of one’s birth on an individual’s destiny or future.
  5. 8. The constellation recognized for its asterism that forms a cross and is referred to as the Northern Cross
  6. 10. British astronomer who discovered that stars move
  7. 11. A constellation named after a queen in Greek mythology
  8. 12. The scientist who first validated that the sun is also a star
  9. 14. They make use of mathematics, computer tools, star maps, and diagrams, but they do not employ the scientific method.
  10. 17. a greek philosopher that created a boatshaped Constellation
  11. 19. The sections of the sky that contains recognizable patterns of stars
  12. 20. A popularly known asterism of Ursa Major
  13. 23. Is the smallest of 88 constellations
  14. 24. An exploding dying star
  15. 28. The second brightest star that helps in spacecraft navigation
  16. 29. Movement of the earth around its axis that determines the position of the constellations throughout the night
  17. 30. A large boatshaped constellation
  18. 33. The brightest star with an absolute magnitude of 1.4
  19. 37. A yellow dwarf star and a ball of hot gas held together by strong gravity