Across
- 4. a group of stars that line up to make an outline
- 6. the study of stars, planets, & space
- 8. to list or describe things neatly
- 9. a telescope in which the lens gathers light
Down
- 1. information or facts
- 2. a building with telescopes and other instruments
- 3. count of people or objects like stars
- 5. the act of working something out using math
- 7. range of colors that is seen when a beam of white light shines through a lens