Vocabulary Crossword Puzzle: Astronomy Ch 1 - Crossword Puzzles "Astronomy Ch 1" made with our Free Crossword Puzzle Maker

Astronomy Ch 1 Crossword

Down: 1) 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 sky 2) 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 long 3) system for locating objects in the celestial sphere based on the position of the observer on Earth, using altitude-azimuth 5) 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)6) the angle of distance between two objects as viewed from the same place (synonymous with angle, itself)7) the most northern position of the Sun during the year, resulting in the longest day (hours of daylight) of the year in the northern hemisphere 11) imagined points on the celestial sphere if the north and south poles were extended out into the universe 12) imaginary horizontal lines on Earth running parallel to the equator 17) an object's apparent size, as seen from an observer's position, determined by its actual size and its distance from the observer 18) image of the sky as a huge hollow globe of stars that turns around the Earth 19) the point on the celestial sphere directly over you 22) 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 bulge 25) imaginary vertical line on Earth running from the North Pole to the South Pole and through Greenwich, England and dividing the globe into halves 29) imagined as a dome with your horizon as the base and your zenith as the point above you, it is 32) imaginary horizontal line on Earth, halfway between the north and south poles, that divides the globe into halves

Across: 4) measured in degrees, the horizontal direction of a star in the sky 8) the time interval for Earth to make one complete rotation using the Sun as a reference (24 hours)9) area around the north and south poles of the Earth 10) right ascension and declination used to locate any object in the celestial sphere 13) northernmost and southernmost points on Earth 14) name of angle of elevation used to determine location of objects in the celestial sphere 15) imaginary lines on Earth running from the north to the south pole, dividing the Earth into segments totaling 360 degrees 16) X and Y data points based on the longitude and latitude lines on Earth and divided further into degrees, minutes and seconds 20) apparent path of the sun against background stars (on a star map)21) stars belonging to groups that form recognizable patterns in the sky 23) in the northern hemisphere, located above your northern horizon at an altitude equal to your latitude 24) the great circle on the celestial sphere 90 degrees from your zenith, the imaginary line which you cannot see past 26) distance measured in hours eastward along the celestial equator from the zero point (vernal equinox). 27) actual measurable distance between two points 28) occurring on September 23, it is the sun's position as it crosses the celestial equator going south 30) star or constellation that never sets below the horizon and is visible year-round from one of the polar regions 31) 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 ascension 33) popular, unofficial star patterns 34) nested hierarchy manner of envisioning our place in the universe from local to as universal 35) the most southern position of the Sun during the year, resulting in the shortest day (hours of daylight) of the year in the northern hemisphere 36) angular distance above or below the celestial equator 37) imaginary projection of the Earth's equator out into the universe

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