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Preparation for the Junior Astronomy and Astrophysics Olympics grades 6-9


Topic 2


There are always stars on the celestial sphere or vault. A man who sits down and sees them, will always see that the stars are moving, will see that the stars start from the bottom and come up to the highest point, then let down the sun horizon. From this we deduce that the stars do not change each...

Topic 1


In this category we will talk more about constellations and the movement of the Earth, as well as about the orientation after the Sun or stars, etc. All categories are below.