Calculateur de Module de Distance — Formule
## Distance Modulus
The distance modulus (m - M) connects apparent and absolute magnitudes to distance.
### Formula
**d = 10^((m - M + 5) / 5)** parsecs
This is the inverse of the magnitude-distance relation and is fundamental to the cosmic distance ladder.
The distance modulus (m - M) connects apparent and absolute magnitudes to distance.
### Formula
**d = 10^((m - M + 5) / 5)** parsecs
This is the inverse of the magnitude-distance relation and is fundamental to the cosmic distance ladder.
Exemple Résolu
A Cepheid variable has m = 1.43 and M = -5.14.
- Distance modulus = m - M = 1.43 - (-5.14) = 6.57
- d = 10^((6.57 + 5)/5) = 10^(11.57/5) = 10^2.314
- d ≈ 206 pc ≈ 672 ly