Medium


Light pollution lesson plan

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Nebulae

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Nebulae

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O movimento diurno aparente do Sol

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A esfera celeste e a orientação pelas estrelas

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Lei de Stefan-Boltzmann & Deslocamento de Wien

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Stars

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Types of stars using NSO spectra

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Why is it hotter in summer and colder in winter?

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The Sun also has spots!

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