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15 Cards in this Set
- Front
- Back
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revolution
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a circular motion or orbit around the axis or center.
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ellipse
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earths year long orbit around the sun
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solstice
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The longest and shortest days of the year.
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equinox
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when day and night are of equal length.
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moon phase
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when the moon has its different shapes.
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new moon
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is the beginning of the moon phases.
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waxing(moon)
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when the moon is in it’s last quarter.
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full moon
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is the middle of the phases.
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solar eclipse
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is when the moon is between the sun and earth.
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lunar eclipse
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is when the moon is on the out side of the sun and earth.
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maria
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a basalt plain on the surface of the moon, appearing to be dark by contrast with highland areas.
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electromagnetic spectrum
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the range of wavelengths or frequencies over which electromagnetic radiation extends.
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refracting telescope
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a telescope that uses a converging lens to collect light.
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reflecting telescope
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a telescope in which a mirror is used to collect and focus light.
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observatory
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a room or building housing an astronomical telescope or other scientific equipment for the study of natural phenomena
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