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Ch 28 JJ

Sun- Earth - Moon system

QuestionAnswer
interferometry process of linking several telescopes together so they act as one.
reflecting telescope telescope using mirrors to focus the light.
refracting telescope telescope using lenses to focus the light.
spinoff technology created in the space program and passed on to commercial industry for you to use.
albedo amount of sunlight that a surface reflects
ejecta material blasted out of impact craters.
highland found on the moon. Lighter in color. Mountainous and heavily covered with craters.
impact crater crater found on the moon, formed when objects from space crashed into the moons surface.
mare (maria) dark, smooth plains found on the surface of the moon.
ray light colored streaks stretching out from craters. Made from ejecta.
regolith loose, ground up rock found on the surface of the moon.
rille meandering, valley-like structures found on the moon.
apogee Moon is at its farthest point from the earth.
autumnal equinox Around Sept. 21st. First day of fall. equal day and night as the sun shines directly on the equator
ecliptic The plane on which the earth and other planets orbit the sun
lunar eclipse earth passes between the sun and the moon. Happens occasionally during a full moon.
perigee moon is closest to the earth
solar eclipse Moon passes between the sun and the earth blocking the sun. Happens occasionally during a new moon.
summer solstice longest day of the year. 1st day of summer. sun shines most directly at 23.5 degrees north latitude (tropic of Cancer) about June 21st
synchronous rotation orbital and rotation periods of the moon are equal
vernal equinox sun shines directly at the equator. equal day and night. 1st day of spring. about March 21st
winter solstice sun shines most directly at the Tropic of Capricorn (23.5 degrees S. latitude). 1st day of winter in the northern hemisphere. shortest day of the year in the northern hemisphere. About Dec. 21st.
Created by: jljohnson404
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