Astronomy Ch 1 Crossword
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
 
 
Down: 1) imagined as a dome with your horizon as the base and your zenith as the point above you, it is 2) imagined points on the celestial sphere if the north and south poles were extended out into the universe3) imaginary projection of the Earth's equator out into the universe 5) name of angle of elevation used to determine location of objects in the celestial sphere6) system for locating objects in the celestial sphere based on the position of the observer on Earth, using altitude-azimuth7) the point on the celestial sphere directly over you 8) the most southern position of the Sun during the year, resulting in the shortest day (hours of daylight) of the year in the northern hemisphere9) in the northern hemisphere, located above your northern horizon at an altitude equal to your latitude11) northernmost and southernmost points on Earth12) the extremely slow shifting of Earth's axis around a cone shape in space, caused by the tug of gravity of the sun and moon on Earth's equatorial bulge16) nested hierarchy manner of envisioning our place in the universe from local to as universal17) the north star, or polestar, located less than one degree away from the north celestial pole, marking the position of the north celestial pole in the sky19) measured in degrees, the horizontal direction of a star in the sky 23) occurring on September 23, it is the sun's position as it crosses the celestial equator going south25) popular, unofficial star patterns28) the time interval for Earth to make one complete rotation using the stars as a reference (to make one whole turn in space), 23 hours, 56 minutes, 4 seconds long30) apparent path of the sun against background stars (on a star map)32) imaginary horizontal line on Earth, halfway between the north and south poles, that divides the globe into halves Across: 1) imaginary lines on Earth running from the north to the south pole, dividing the Earth into segments totaling 360 degrees4) imaginary vertical line on Earth running from the North Pole to the South Pole and through Greenwich, England and dividing the globe into halves10) an object's apparent size, as seen from an observer's position, determined by its actual size and its distance from the observer13) imaginary circle passing through your zenith and the north and south points on your horizon (only half of the meridian/circle is visible above your horizon)14) the angle of distance between two objects as viewed from the same place (synonymous with angle, itself)15) right ascension and declination used to locate any object in the celestial sphere18) distance measured in hours eastward along the celestial equator from the zero point (vernal equinox). 20) the great circle on the celestial sphere 90 degrees from your zenith, the imaginary line which you cannot see past21) the most northern position of the Sun during the year, resulting in the longest day (hours of daylight) of the year in the northern hemisphere22) star or constellation that never sets below the horizon and is visible year-round from one of the polar regions24) angular distance above or below the celestial equator26) the time interval for Earth to make one complete rotation using the Sun as a reference (24 hours)27) X and Y data points based on the longitude and latitude lines on Earth and divided further into degrees, minutes and seconds29) stars belonging to groups that form recognizable patterns in the sky31) image of the sky as a huge hollow globe of stars that turns around the Earth33) actual measurable distance between two points34) occurrence on March 21 when the center of the sun is directly above Earth's equator, the point on the celestial sphere chosen as the zero hour of right ascension35) area around the north and south poles of the Earth36) imaginary horizontal lines on Earth running parallel to the equator
 

 

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