'First star catalog' diaporamas de présentation

1.4 ORIGIN OF MODERN ASTRONOMY

1.4 ORIGIN OF MODERN ASTRONOMY. The Roots of Astronomy. The study of the astronomy of ancient peoples has been termed archeoastronomy . Back in the stone and bronze ages, humans were interested in the cyclic motions in the sky.

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Measuring the Properties of Stars

Measuring the Properties of Stars. Measuring the Properties of Stars Stellar Brightness and Luminosity. Power is the rate at which energy is transferred, or the amount of energy transferred per unit time.

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