Across
- 3. when the moon falls upon a second body
- 4. fraction of moon we see illuminated
- 7. imaginary north south line
- 8. super massive black hole in distant galaxy
- 9. telescopes main light gatherer
- 10. of view what you see through a telescope
- 11. cloud of glowing gas
Down
- 1. distance light moves in one year
- 2. streak of light across atmosphere
- 5. when a moon or planet seems close to another
- 6. massive ball of gas that creates energy
- 12. edge of celestial visible disk