Across
- 4. what remains when a supergiant star collapses into itself.
- 6. are groups of stars with names from antiquity.
- 8. closets planet to the sun
- 9. is a huge assemblage of stars
- 10. a well-known constellation.
Down
- 1. has no atmosphere
- 2. cools for eons until it is too cold to emit light.
- 3. nearest star to the Earth
- 5. occur when the Moon's shadow falls on part of Earth
- 7. occurs when Earth's shadow falls on the Moon.