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- The beautiful Orion constellation. The brightest stars are not necessarily all the same distance from the earth.
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- The parallax of nearby stars can be measured since earth orbits the Sun, giving us two very different perspectives on the stars.
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- Light gets fainter by the square of your distance away from the light source. This is known as the “inverse square law” of light.
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- Even though they appear close together on the night sky. Stars in a constellation may actually be very far apart.