Unit 6 Vocab

5. the path of a celestial body (such as a moon or a planet) around a larger celestial body.
7. Moon phase in which exactly half of the Moon appears to be illuminated (occurs when the Moon has gone three quarters of the way around Earth).
8. to spin on an axis.
9. the time at which the Moon appears above the eastern horizon. Moonset– the time at which the Moon disappears below the western horizon.
13. Moon phase in which exactly half of the Moon appears to be illuminated (occurs when the Moon has gone one quarter of the way around Earth).
15. a line connecting the north pole to the south pole
17. Moon phase in which more than half of the Moon appears to be illuminated.
18. occurring at the same time or rate
19. to move around a central point.
22. the moon is growing larger within the sky
23. the moon is not visible in the sky

1. Moon phase in which less than half of the Moon appears to be illuminated.
2. extensive higher elevation land masses
3. The entire side of the moon is visible in the sky
4. with respect to the distant stars, not planets or moons
6. to brighten with light.
10. the appearance of the Moon, as seen by an observer on Earth.
11. the line along which the sky appears to meet the land or sea.
12. a process by which surface materials are moved by natural processes such as wind
14. any flat dark plain of lower elevation on the moon
16. the results of a curvature by massive objects of the space and time around them
20. longer in length than width
21. the moon is shrinking in the sky