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Chapter 1 vocab

This stack is all the vocab in chapter 1 of the Astronomy text book.

QuestionAnswer
Astronomy The study of the moon,stars, and other objects in space
Axis an imaginary line that passes through Earth's center and the North and South poles, about which earth rotates.
Rotation The spinnign motion of a planet about its axis
Revolution the movement of an object around another object
Orbit the oath of an object as it resolves around another object in space
Latitude a measurement of distance from the equator, expresses in degrees north or south
Solstice the two days of the year on which the noon sun is directly overhead at either 23.5 degrees south or 23.5 degrees North
Equinox The two days of the year on which neither hemisphere is tilted toward or away from the sun.
Vernal Equinox The day of the year that marks the beginning of sprinf in the northern hemisphere
Autumnal Equinox The day of the year that marks the beginning of fall in the northern hemisphere
Phases one of the different shapes of the moon seen from earth
eclipse the partial or total blocking of one object by another
Solar eclipse the blocking of sunlight to earth that occurs when the moon is between the sun and earth
Umbra the darkest part of a shadow
penumbra the part of a shadow surrounding the darkest part
Lunar eclipse the blocking of sunlight to the moon that occurs when Earth is dirrectly between the sun and the moon
Tide the rise and fall of the level of water in the ocean
gravity the attractive force between two objects; its magnitude depends on their masses and the distance between them
spring tide a tide with the greatest difference between low and high tides.
Neap tide a tide with the least difference between low and high tides.
satellite Any Object that revolves around another object in space
Geosynchronous orbits The orbit of a satellite that revolves around Earth at the same rate that Earth rotates
Telescope A device built to study distance objects by making them appear closer
Craters A round pit on the moon's surface
Maria dark, flat regions on the moon's surface.
Created by: swimmchick
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