Astronomy Vocab

4. The partial or total blocking of one object in space by another
6. The term lunar means relating to the _____
7. The North Star is called _____
8. continuous daylight, a time when the sun is visible at midnight during the summer at the north and south pole
11. the lighter part of a shadow
12. A group of stars that form a pattern in the sky
16. A _____eclipse occurs when the moon appears darkened as it passes into the earth's shadow.
17. A ____ year is the time it takes the Earth to travel all the way around the Sun
18. half of the earth

1. The study of the moon, stars, and other objects in space
2. A elongated circle, or oval shape, the shape of the planets orbit.
3. the period during which the visible surface of the moon increases
5. The _______ plane is the plane of Earth's orbit around the Sun
9. the very darkest part of the moon's shadow
10. the period during which the visible surface of the moon decreases
13. The ____ cycle refers to a sequence of phases of the moon as it revolves around the Earth once every 27.3 days.
14. The phase of the moon that occurs when it passes between Earth and the Sun and none of the bright side of the moon is visible. The moon appears to be invisible.
15. Period in the polar regions in winter when the sun does not rise