SCIENCE CROSSWORD

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Across
  1. 4. a star begins as a large cloud of gas and dust called?
  2. 7. a group of stars forming a recognizable pattern that is traditionally named after its apparent form or identified with a mythological figure.
  3. 9. it is a constellation in the northern hemisphere with a English name of Giraffe.
  4. 10. star patterns that have been discovered but not been officially identified as constellations.
  5. 11. a constellation named after a queen from ancient Greek.
  6. 12. it is a zodiac sign that is represented by the twins Castor and Pollux, known as the Dioscuri.
  7. 13. it is the measurement of the shift of a nearby object compared to distant objects when observed from two different position.
Down
  1. 1. it s an astronomical object consisting of a luminous spheroid of plasma held together by its own gravity.
  2. 2. means "circle of animals" in Greek.
  3. 3. these are neutron stars flickering with radio pulses.
  4. 5. these are stars that suddenly become very bright.
  5. 6. it refers to the scientific study of objects in the universe.
  6. 8. it is a type of telescope that enables astronomers to study extremely hot objects in space, including quasars and stars called white dwarfs.