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Astronomy Notes!

atstronomy notes + definttions

QuestionAnswer
Astronomy The study of the moon,stars,and other objects in space.
Axis An imaginary like that passes through Earth's center and the North and South poles,about which Earth rotates.
Rotation The spinning motion pf a planet about its axis.
Revolution The movement of an object around another object.
Orbit The planet of an object as at revolves around another object in space.
Tilt When an object is on an angle.
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.
phase One of the different shapes of the moon as seen from Earth.
eclipse The partial or total blocking of one object by another
gravity The attractive force between two objects; its magnitude depends on their masses and the distance between them.
tide The rise and fall of the level of water in the ocean.
satellite Any object that revolves around another object in space.
telescope A device built to study distant objects by making them appear closer.
geocentric A description of the solar system in which all of the planets revolve around the Earth.
heliocentric A descrption of the solar system in which all of the planets revolve around the sun.
inner planet A planet on the inside of the astroid belt.
outer planet A planet on the outside of the astroid belt.
comet A ball of ice and dust whose orbit is a long narrow eclipse.
asteroid Objects revolving around the sun that are too small and too numerous to be considered planets.
meteroid A chunk of rock or dust in space.
constellation A pattern of stars in the sky.
galaxy A giant structure that contains hundreds of billions of stars.
universe All of space and everything in it.
Milky Way The Galaxy we live in.
Created by: bbrider33
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