space crosswrd

12345678
Across
  1. 3. gas in the stars
  2. 5. interstellar nebula which are the origin of the stars
  3. 7. Clusters of interstellar gas and dust.
  4. 8. stars at an advanced stage of evolution.
Down
  1. 1. group of stars physically bound by gravitation, formed under similar conditions in a relatively short time, and evolving under the same conditions.
  2. 2. Star with a shiny core (head) and a gaseous trail (hair and tail), which describes an orbit in the shape of an ellipse around the Sun.
  3. 4. region of space so dense that no radiation emerges.
  4. 6. Very bright explosion that marks the end of the life of some stars; star in this stage.