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astronomy8

QuestionAnswer
what is Astronomy? A belief that links the positions of the stars and planets to human destinies. It has no scientific background.
what is axis? An imaginary straight line on which an object rotates.
what is rotation When an object spins it is said to be rotating.
what is revolution When something is moving in a circle around another object such as the way the Moon Circles the Earth it is said to revolve around that object.
what is orbit The path one object takes around another.
what is solstice 22 June, and 22 December. Time of the year when the day is either shortest, or longest depending on where you are.
what is equinox March 21st, and September 22nd. Twice a year, when the day and night are the same amount of time all around the world.
what is phase The apparent change in the shape of the Moon, Mercury, and Venus due to how much of the sunlit side is facing the Earth.
what is eclipse When our view of one object in the sky is blocked by either another object, or the Earths shadow.
what is gravity The attractive force between two objects; it magnitude depends on their mass and the distence between them
what is tide The rise and fall of the level of water in the ocean
what is satellite A small object orbiting a larger one. There are many electronic objects that orbit the Earth.
what is telescope A device built to study distant objercts by making them appear closer.
what is geocentric Simply means the Earth in the Center. People used to believe the Universe was geocentric, or that the Earth was in the center of the Universe.
what is heliocentric A discription of tyhe solar system in which al of the planets revolve around the sun.
what is inner planet First four planets Mercury, Venus, Earth, and Mars
what is outer planet The Outer Planets are Jupiter, Saturn, Uranus and Neptune.
what is comet A small, frozen mass of dust and gas revolving around the sun.
what is asteroid A rock, or Minor Planet orbiting the Sun.
what is meteroid A shooting star, observed when a particle of dust enters into the Earth's atmosphere.
what is constellation A grouping of stars which have been given names by ancient astronomers because of the way they look.
what is galaxy A giant structure that contians hundreds of billions of stars.
what is universe All of space and every thing in it.
what is Milky Way Our Galaxy. (the word "Galaxy" actually means milky way in Greek).
Created by: jordanhfl
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