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13 Cards in this Set
- Front
- Back
- 3rd side (hint)
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rotation |
the action of rotating around an axis or center. |
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revolution |
an instance of rotation |
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axis |
an imaginary line about which a body rotates. |
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orbit |
the curved path of a celestial object or spacecraft around a star, planet, or moon, especially a periodic elliptical revolution. |
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tilt |
move or cause to move into a sloping position. |
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solstice |
A solstice is an astronomical event that occurs twice each year as the Sun reaches its highest or lowest excursion relative to the celestial equator on the celestial sphere. |
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equinox |
the time or date (twice each year) at which the sun crosses the celestial equator, when day and night are of equal length. |
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seasons |
each of the four divisions of the year (spring, summer, autumn, and winter) marked by particular weather patterns and daylight hours, resulting from the earth's changing position with regard to the sun. |
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sphere |
a round solid figure, or its surface, with every point on its surface equidistant from its center |
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hemisphere |
a half of the earth, usually as divided into northern and southern halves by the equator, or into western and eastern halves by an imaginary line passing through the poles. |
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equator |
an imaginary line drawn around the earth equally distant from both poles, dividing the earth into northern and southern hemispheres and constituting the parallel of latitude 0°. |
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latitude |
the angular distance of a place north or south of the earth's equator, or of a celestial object north or south of the celestial equator, usually expressed in degrees and minutes. |
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longitude |
the angular distance of a place east or west of the meridian at Greenwich, England, or west of the standard meridian of a celestial object, usually expressed in degrees and minutes. |
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