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THE FEUTEX TOOLKIT

Stellar Distance Modulus

Infer stellar distance from apparent and absolute magnitude with an extinction allowance.

Astronomy workspace● Runs in your browser
01 Your input
02 Your result
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FormulaDistance = 10**((m-M-a+5)/5); Corrected distance modulus = m-M-a
Sources and model references

Worked example

Inputs

Apparent magnitude
10 mag
Absolute magnitude
5 mag
Extinction
0 mag

Expected results

Distance
100 parsec
Corrected distance modulus
5 mag

Load the example in the workspace to reproduce these results. Display rounding does not change the underlying calculation.

How to use this tool

  1. Infer stellar distance from apparent and absolute magnitude with an extinction allowance.
  2. Set apparent magnitude, absolute magnitude, extinction in the indicated units.
  3. Calculate and compare distance, corrected distance modulus.

Try this example

{
  "m": 10,
  "M": 5,
  "a": 0
}

Accuracy and scope

Idealized educational model. Enter measured values in the displayed units; real systems may require additional corrections.

Is my data uploaded?

This tool runs locally in your browser. Input and output are not sent to a processing server. Copy or download your result before leaving the page.