Astronomy & Space
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Distance Modulus

Relates apparent and absolute magnitudes to distance.

Formula

m−M=5log⁡10(d)−5m - M = 5\log_{10}(d) - 5

Variables

mApparent mag
MAbsolute mag
dDistance (pc)

Example

Measures cosmic distances

Did You Know?

Absolute magnitude rates stars as if all sat at the same distance, revealing their true brightness.

brightness

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