How to Use a Star Map
Stargazers who look into the night sky can spot famous constellations and planets. Using a star map, anyone can locate planets and stars. These maps are used like a typical road-map but factor in the seasons, location and time of night to give an accurate image of a starry sky. Star maps are available as both cardboard and plastic devices, with the latter being able to be used as an overlay across the stars.
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Instructions
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Determine the latitude in which you are located by finding your location on a map. Star Maps are designed based around specific latitudes, so purchase one that corresponds to your location. Residents of the United States will use star maps that are set at a 40 degree latitude.
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Rotate the wheel beneath the map so that the time you're outside matches the month you're currently in. The sky at 8 p.m. in April is different than the sky at 8 p.m. in November.
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Use a compass to find north. Face that direction.
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Hold the star map up so that it is in front of you and positioned slightly above your head.
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Locate the North Star by first finding the seven stars that form the Big Dipper. These stars are typically the brightest in the sky and are apart from other stars.
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Trace the two stars at the front of the Big Dipper and continue upwards. The next star you reach is the North Star.
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Lige up the North Star with your star map. If the Star Map is made of clear plastic, place it over the star, if the star map is not clear continue to use it as a guide.
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Pick a constellation on the star map and locate it it by using the North Star as your starting point and moving your eyes in the direction of the constellation.
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Tips & Warnings
As you spend more time outside, be sure to switch the time on your star map to track the movement of the stars in the sky.
