Rside-Stars-Nicks

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Across
  1. 2. Polish astronomer who first proposed the heliocentric model of the solar system
  2. 5. a model of celestial motion in which earth and all the planets revolve around the sun
  3. 9. a cloud of gas and dust in space
  4. 12. a phase of the moon in which the whole disk is illuminated
  5. 13. a shadow created by light on a opaque object
  6. 15. Italian physicist whos early use of the telescope allowed he to make many observations that confirmed Copernicus model
  7. 17. A solid piece of debris, from such sources as asteroids or comets, that originates from outer space but survives the impact of the earths atmosphere
  8. 18. someone who studies celestial bodies
  9. 19. a small relatively cool star on the main sequence, most commun in the milky way
  10. 20. the shape of the illuminated sunlight portion of the moon seen by the observer on earth
  11. 25. stars with similar mass as are sun that burns hydrogen
  12. 31. a type of stellar rammennce that can result in a collapse of a massive star after a supernova
  13. 32. German mathematician who determined that the planets orbit around the sun
  14. 33. a celestial bodies made up of hot gases, core like a furnace makes its own thermal energy
  15. 34. hole a large sphere of incredibly tightly packed material with an extraordinary amount of gravitational pull created when a star collapses into itself.
  16. 35. stars with masses more than half the mass of the sun
  17. 36. Greek mathematician, astronomer, and geographer, whos work supported the geocentric solar system
  18. 37. the tilt of the earth which is 23.5 from the flat pane of the earths orbit
  19. 38. time when earth is rotating
  20. 39. a star that has burnt up all the hydrogen the once used as nuclear fuel
Down
  1. 1. the change in wavelengths of electromagnetic radiation or sound that accrues because of the movement of the source relative to an observer.
  2. 3. a white dwarf that has cooled down to the temperature of the cosmic microwave background and is now invisible
  3. 4. a large mass that forms by contractions out of the gas of a giant molecular cloud in the interstellar medium
  4. 5. a diagram that shows the absolute of stars
  5. 6. patterns in the night sky formed by groups of stars often look like familiar objects
  6. 7. a constellation visible throughout the year in most of the northern hemisphere
  7. 8. a shadow created by light on a opaque object
  8. 10. a prominent group of stars in in the constellation ursa major
  9. 11. a quatre moon occurs when we see he moon is half illuminated by the sun and half enshrouded in darkness
  10. 14. 12 times the size of our sun and burns faster hydrogen
  11. 16. overshadowing of the moon that accrues when the earth lies directly between the moon and the sun during a full moon phase
  12. 21. a telescope that uses infrared light to detect celestial bodies
  13. 22. A piece of stone or metallic de brisk that travels in outer space
  14. 23. the process in which the nuclei of atoms fuse together to form larger single atoms greeting an enormous amount of energy
  15. 24. a model of celestial motion in which the earth is the centre of the universe
  16. 26. the material that fills up space mostly made up of hydrogen. And dust
  17. 27. Is a bright streak of light in the sky produced by a meteoroid breaking into the earths atmosphere
  18. 28. an overshadowing of the earth that accrues when the moon is between the sun and the earth and the moon blocks the suns earth
  19. 29. Is an astronomical event that accrues 2 times a year when the sun burns and its highest and lowest excursions relative to the celestial equator
  20. 30. a dramatic massive explosion that accrues when a large high mass star collapses on itself