Back to Read the Light of the UniverseLesson 11 of 24
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Read the Light of the UniverseModule 3Motion, Brightness, and Distance
Module 3 / Lesson 11 of 2427 min
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Brightness Is Not the Same as Luminosity

How can a nearby dim source appear brighter than a much more powerful distant source?

Separate received flux from intrinsic luminosity and connect both through distance.

A nearby modest star and a distant powerful star send different amounts of light toward an observatory.
Vastward artistic reconstruction. The inverse-square explorer below provides the quantitative comparison.

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