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Geo/Helio vocab

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QuestionAnswer
Foucault pendulum simple device conceived as an experiment to demonstrate the rotation of the earth
geocentric model earth-centered model
heliocentric model sun-centered model
retrograde motion motion in the direction opposite to the movement of something else
apparent solar day interval of time during which the sun passes from its highest point on one day to its highest point on the next
mean solar day interval of time between successive transits of a given meridian by the mean sun
autumnal equinox beginning of fall in Northern Hemisphere; daylight lasts for 12 hours
winter solstice beginning of winter in Northern Hemisphere; shortest daylight period of the year
vernal equinox beginning of spring in Northern Hemisphere
summer solstice beginning of summer in Northern Hemisphere; longest daylight period of of the year
Coriolis effect deflection of moving objects when they are viewed in a rotating reference frame
180 degrees total number of degrees that the earth rotates on its axis during a 12-hour period
Sirius is observed in the evening sky during January. After 3 hours, Sirius will appear to have moved 45 degrees
In New York State between February and May, the number of daylight hours increases
From September to November the sun's altitude at noon in the Northern Hemisphere decreases
In its orbit around the sun, the earth revolves approximately 1 degree per day
Created by: Tyl3r10959
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