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A huge space with everything astral in it
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Solar system
Planets and other things revolving around the sun
A group of lots of stars, dust, gas and planets
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Galaxy
Star
A giant ball of gas and plasma. it is held together by it’s own gravity.
A colony of stars usually depicting a mythological character.
Polaris
Polaris, or the North Star, is a very bright star and close to the north celestial pole.
Circumpolar
If a star or constellation is circumpolar then you can see it all year long
Astronomical unit
A way to measure the distance of earth to the sun without getting a huge number.
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