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VocabTest.com Material
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3) Wordly Wise 3000®
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Book 6
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Book 12
Astronomy Crossword
Down
:
2) total lunar eclipse, partial lunar eclipse, penumbral lunar eclipse
4) the path the Sun follows as it appears to circle around the celestial sphere once each year
5) the galaxy cluster and superclusters all together
8) clusters of galaxy clusters
9) when our universe's expansion began
10) another word for azimuth
12) groups of galaxies with more than a few dozen members
14) the planets move in this shape
18) spurred by the new ideas introduced by the Polish scientist, eventually overturned the Earth-centered model
19) an imaginary half circle stretching from the horizon due south, through the zenith, to the horizon due north
22) the distance that light can travel in one year (about 10 trillion kilometers)
25) the boundary between the Earth and the sky
30) great island of stars in space
34) the Earth's yearly revolution
35) how high a star is in the sky relative to the horizon
Across
:
1) the degrees from which a plane is tilted relative to an ecliptic plane
3) the point directly overhead
6) The effect whereby the position or direction of an object appears to differ when viewed from different positions
7) the sky as seen from wherever you happen to be standing
11) when Earth lies directly between the Sun and the Moon
13) places Earth at the center of the universe
15) consists of the Sun and all the objects that orbit it
16) geocentric, attempts to explain retrograde motion with a loop-on-loop setup
17) the Earth's orbital path, a defined flat plane
20) total solar eclipse, partial solar eclipse, annular eclipse
21) a star whose complete circle lies above our horizon
23) a sort of "skin" of stars wrapping around Earth
24) the different appearances and rising times of the moon over its cycle
26) projection of the Earth's equator into space
27) we always see the same phase of the moon, because Earth's gravity forces the same side of the moon to show
28) the Earth's daily spin
29) where it appears that the planets are moving backwards (west to east)
31) when the Sun, Earth and Moon fall into a straight line
32) the angle as it appears to span in your field of view
33) the process in which lightweight atomic nuclei smash together and stick to make heavier nuclei
36) when the Moon lies directly between the Sun and Earth, so the Moon's shadow falls on Earth
37) the Earth's average orbital distance (150 kilometers)
38) a gradual wobble that alters the orientation of Earth's axis in space
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