Absolute Magnitude Calculator

Convert between apparent magnitude and absolute magnitude using M = m − 5 log(d/10 pc), or solve for distance. Accounts for interstellar extinction when the dust coefficient is provided.

 
0
Physical Constants Reference
ConstantSymbolValue
Speed of lightc2.99792458×10⁸
Planck's constanth6.62607015×10⁻³‴
Boltzmann constant1.380649×10⁻²³
Avogadro's numberNₐ6.02214076×10²³
Gravitational constantG6.6743×10⁻¹¹
Gas constantR8.31446
Elementary chargee1.602176634×10⁻¹⁹
Electron massmₑ9.1093837015×10⁻³¹
Proton massmₚ1.67262192369×10⁻²⁷
Fine-structure constantα7.2973525693×10⁻³
Advertisement

How It Works

Convert between apparent magnitude and absolute magnitude using M = m − 5 log(d/10 pc), or solve for distance. Accounts for interstellar extinction when the dust coefficient is provided

Each component has a specific meaning:

  • M = m − 5 log — The m = m − 5 log recorded for the scenario being assessed.
  • Or solve — The or solve recorded for the scenario being assessed.

Note: Interpret the absolute magnitude result against the thresholds and context described above.

How to Use

Enter the M = m − 5 log, or solve for the scenario you are assessing. Convert between apparent magnitude and absolute magnitude using M = m − 5 log(d/10 pc), or solve for distance. Accounts for interstellar extinction when the dust coefficient is provided. Use the absolute magnitude result to inform your calculation.

Frequently Asked Questions