Across
- 2. the distance that light travels in one year
- 4. the imaginary north-south line that passes directly overhead
- 7. happens two times per year
- 8. a ball of ice and rock debris that orbits around the sun in a long ellipse.
- 9. a brief streak of light caused by a small piece of solid matter entering earths atmosphere
- 10. the edge of a celestial object's visible disk
Down
- 1. a glow in the night sky caused by artificial light
- 3. the measure of how much an orbit deviates from being circular
- 5. a vast collection of stars, gas, and dust containing billions of stars
- 6. latin for cloud
- 7. the sun