Across
- 2. telescopes/ A type of telescope that uses lenses to focus visible light
- 6. telescopes/ A type of telescope that uses mirrors to focus visible light
- 8. Wobble in Earth's rotational axis
- 10. Ratio of the distance between the foci to the length of the major axis
- 12. Plane that contains Earth's orbit around the Sun
Down
- 1. Layer of loose, ground-up, rock on the lunar surface
- 3. Planets/ Rocky-surfaced, relatively small, dense inner planets closets to the Sun
- 4. Light-colored, mountainous, heavily cratered areas of the Moon, composed mostly of lunar breccias
- 5. High, cool, light-colored cloud that rises and flows rapidly in the Jovian atmosphere
- 7. Rotation/ Describes the state at which the Moon's orbital and rotational periods are equal
- 9. Motion/ A planet's backward motion in the sky
- 11. Low, warm, dark-colored cloud that sinks and flows rapidly in the Jovian atmosphere