Across
- 2. Outermost largest layer of the suns atmosphere extends millions of kilometers into space and has temperatures up to 2 million k.
- 6. Lowest layer of the suns atmosphere, gives off light and has temperatures of about 6,000 k.
- 8. Bang Theory States that about 12 billion to 15 billion years ago , the universe began with a huge fiery explosion.
- 9. Areas of the sun that are cooler and less bright than surrounding areas, are caused by the suns magnetic field and occur in cycles.
- 10. Magnitude Measure of the amount of light from a star that is received on Earth.
- 12. year Distance light travels in one year, about 95 trillion km.
- 14. Late stage in the life of a main sequence star when hydrogen in the core is used up; the core contracts and temperatures inside the star increase, causing it's outer layers to expand and cool.
Down
- 1. Hole Final stage in the evolution of a Supernova where the core's mass collapses to a point that it has no volume and whose gravity is so strong that not even light can escape.
- 3. Magnitude Measure of the amount of light a star actually gives off.
- 4. Late stage in the life of a massive star in which the core heats up, and heavy elements form by fusion and the star expands and can eventually explode to form a Supernova.
- 5. Layer of the suns atmosphere above the photosphere.
- 7. Star Collapsed core of a Supernova that can shrink to about 20 km in diameter and contains only neutrons in the dense core.
- 11. Large cloud of gas and dust that contracts under gravitational force and breaks apart into smaller pieces each of will collapse to form a star.
- 13. Dwarf Late stage in the life cycle of a main sequene star, in which its core uses up its helium and its outer layers escape into space leaving behind a hot, dense core.
- 14. Large group of stars, dust, and gas held together by gravity. Can be elliptical, Spiral, or Irregular.