Across
- 5. the star that Earth (and other planets in our Solar System) orbits around that gives Earth heat, light, and energy
- 7. how bright a star appears to us from a distance
- 8. a large, round object in space that DOES NOT give off light and orbits a star
Down
- 1. the Sun and everything that orbits or travels around it
- 2. everything that exists including all matter and energy, the planets, stars, galaxies, and all contents of space.
- 3. the measure of how much energy or light a star shines from its surface
- 4. a large group of stars and planets held together by gravity
- 6. a ball of burning gas in space that gives off light