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moon-earth-sun vocab

TermDefinition
Crater The depression at the summit of a volcano or that which is produced by meteorite impact.
Ray Any of a system if a bright elongated steaks,sometime associated with a crater on the moon
Mare The latin name or the smooth areas of the moon formerly thought to be seas
Rille Long channel associated with lunar maria
Lunar Regolith A thin, gray layer on the surface of the moon,consisting of loosely compacted, fragmented material believed to have been formed by repeated impacted meteorites.
Precession A slow motion of Earth’s axis that traces out a cone over a period of 26,000 years
Perihelion The point in orbit of a planet where its closest to the sun
Aphelion The place in the orbit of a planet where the planet is farthest from the sun
Perigee The point at which the moon is closest to earth
Apogee The point where the moon is farest from earth
Phases of the moon The progression of changes in the moon’s appearance during the month
Solar eclipse An eclipse from the sun;a solar eclipse occurs when the moon moves in a line directly between Earth and the sun, casting a shadow on Earth
Lunar eclipse An eclipse of the moon;a lunar eclipse occurs when the moon passes through Earth’s shadow
Created by: hoppermj
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