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16 Cards in this Set
- Front
- Back
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__________ is the study of God's physical creation.
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Science
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_____________ is the study of the heavenly bodies and the laws that govern them.
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Astronomy
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The ___ includes every star, planet, satellite, solar system and universe.
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universe
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A ___ is a star system containing millions to billions of starts.
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galaxy
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We live in the galaxy, the ___ _____.
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Milky Way
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The diameter of the Milky Way is approximately ______ light years.
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100,000 light years
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True/False. Galaxies are spread out randomly.
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False. Galaxies are grouped in orderly structures.
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The ____ _____ is a cluster of about 40 galaxies.
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Local Group
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The largest galaxy in the Local Group is called ____.
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Andromeda
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Two of the closest galaxies to ours are:
1.___ ____ 2. __ ___ |
1. Large Magellanic
2. Small Magellanic |
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Describe the shape of the Milky Way.
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It has a center with three or more arms spiraling outward.
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Astronomers classify galaxies according to their ________.
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shape
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List the four types of galaxy shapes:
1 2 3 4 |
1. Spiral clusters -have a center and spiraling arms
2. Elliptical - looks like eggs; not as structured. 3. Irregular - have no definite shape 4.Barred spirals - bar shaped arms |
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_______ spirals have unusual bar shaped arms.
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Barred
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______ are large clouds of gas and space dust; found in galaxies.
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nebulae
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Why have no pictures been taken outside of our own galaxy?
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Because our galaxy is so large, it would take over 100,000 years for a satellite to travel outside of our galaxy.
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