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