Astronomy Crossword
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
 
 
Down: 1) spurred by the new ideas introduced by the Polish scientist, eventually overturned the Earth-centered model3) when our universe's expansion began4) the distance that light can travel in one year (about 10 trillion kilometers)5) the galaxy cluster and superclusters all together6) a gradual wobble that alters the orientation of Earth's axis in space8) when the Moon lies directly between the Sun and Earth, so the Moon's shadow falls on Earth10) the point directly overhead12) total lunar eclipse, partial lunar eclipse, penumbral lunar eclipse16) The effect whereby the position or direction of an object appears to differ when viewed from different positions18) the Earth's yearly revolution20) the planets move in this shape22) when Earth lies directly between the Sun and the Moon23) projection of the Earth's equator into space24) the degrees from which a plane is tilted relative to an ecliptic plane25) the path the Sun follows as it appears to circle around the celestial sphere once each year28) the Earth's daily spin32) the sky as seen from wherever you happen to be standing Across: 2) places Earth at the center of the universe7) another word for azimuth9) groups of galaxies with more than a few dozen members11) geocentric, attempts to explain retrograde motion with a loop-on-loop setup13) when the Sun, Earth and Moon fall into a straight line14) total solar eclipse, partial solar eclipse, annular eclipse15) consists of the Sun and all the objects that orbit it17) the boundary between the Earth and the sky19) where it appears that the planets are moving backwards (west to east)21) how high a star is in the sky relative to the horizon26) the Earth's orbital path, a defined flat plane27) the different appearances and rising times of the moon over its cycle29) we always see the same phase of the moon, because Earth's gravity forces the same side of the moon to show30) a star whose complete circle lies above our horizon31) an imaginary half circle stretching from the horizon due south, through the zenith, to the horizon due north33) the angle as it appears to span in your field of view34) clusters of galaxy clusters35) the process in which lightweight atomic nuclei smash together and stick to make heavier nuclei36) a sort of "skin" of stars wrapping around Earth37) the Earth's average orbital distance (150 kilometers)38) great island of stars in space
 

 

Create your own Crossword Puzzle for Free!		  Show Errors as I Type