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Sun earth moon

TermDefinition
Satellite A satellite is a body that orbits a planet
Star A star is a giant ball of superheated gas or plasma composed of hydrogen and helium
Planet Spherical orbits the sun with a larger mass than nearby objects.
Meteor A streak of light created by rock in space
Comet Made gas dust and ice that develops tail as it revolves around the sun.
Ellipse An oval shape
Astronomy Study of space
Constellation A pattern or group of stars that people imagine represents a figure
Geocentric Earth centered model
Heliocentric Suncentered
Sun Largest object in our solar system
Axis Imaginary line that passes from the North Pole through the earths center .
Rotation The spinning of earth on its axis
Day 24 hours
Revolution The movement of one object around another
Orbit. One revolution of earth around the sun takes one year.
Solstice Solitcies occur when either the northern or southern hemisphere is at its strongest tilt towards the sun
Equinox Which means equal night
Gravity The force that attracts all objects toward each other
Law of universal gravitation Every object attracts every other and it’s force depends on ,ass and distance.
Phase Different shape of the moon you see
Solar eclipse When thw moon passes directly between the earth and sun.
Lunar eclipse Occurs during a full moon when earth is directly between the moon and sun
Umbra Darkest part of a shadow where light is completely blocked.
Penumbra Area of shadow where light is practically blocked
Tide Daily rise and fall of ocean water
Spring tide Higher high tides during full and new moons
Neap tide Lower high tides during the first and third quarter moons.
Maria Dark smooth lava covered areas on the moon
Highlands Higher lighter areas on the moon covered with craters m
Created by: user-1978831
 

 



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