Light Years

1234567
Across
  1. 4. Central bulge and arms that spiral the center
  2. 6. No defined shape or structure
  3. 7. A collection of gas, dust, stars, and solar systems that are held together by a very powerful gravitational force.
Down
  1. 1. Shaped like ovals
  2. 2. the galaxy our solar system is in
  3. 3. Second closest star to the Earth
  4. 4. made up of everything the orbits the sun
  5. 5. the distance light travels in a year