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Earth Space Voc Chap

TermDefinition
albedo percentage of sunlight that is reflected by the surface of planet or a satellite, such as the moon.
apogee farthest point in an object's orbit to earth.
electromagnetic spectrum all types of electromagnetic radiation arranged according to wavelength and frequency
equiox time of year during which earth's axis is at a 90 angle to the sun; both hemispheres receive exactly 12 hours of sunlight and the sun is directly overhead at the equator
ejecta material that falls back to the lunar surface after being blasted out by the impact of a space object
highland light-colored, mountainous, heavily cratered area of the moon, composed mostly of lunar breccias
interferomerty process that links separate telescope so they act as one telescopes, producing more detailed images as the distance between them increases.
impact crater crater formed when space material crashes into the surface of a celestial body.
lunar eclipse when earth passes between the sun and the moon, and earth's shadow falls on the moon; occurs only during a full moon
mare single dark-colored smooth plain on the moon's surface
maria dark-colored, smooth plains on the moon's surface.
perigee closest point in the moon elliptical orbit to earth.
refracting telescope telescope that uses mirrors to focus visible light
ray long trail of ejecta that radiates outward from an impact crater
rille valleylike structure that meanders across some regions of the moon's maria
regolith layer of loose, ground-up rock on the lunar surface
reflecting telescope telescopes that uses mirrors to focus visible light
synchronous rotation the state at which an orbiting body's orbital and rotational periods are equal
solstice period when the sun is overhead at its farthest ditance either north or south of the equator
ecliptic plane plane of earths orbit around the sun
Created by: jenniferG
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