Stellar magnitude flux ratio calculator

Calculate flux A / flux B with your own figures.

Your numbers

Use the units shown. Results update as you change valid inputs.

Use flux A / flux B to compare changes to your inputs. The method and limits below explain the scope.

Examples

Examples

Try the starting example

Magnitude of source A
2
Magnitude of source B
5
Flux A / flux B
15.848932

Try another scenario

Magnitude of source A
2.2
Magnitude of source B
5
Flux A / flux B
13.182567
Calculation method

Calculation method

Flux A / flux B

Flux ratio=10^(0.4 × (mB-mA)).

Symbols and units
a
Magnitude of source A
b
Magnitude of source B

Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.

Assumptions & limits

Assumptions & limits

  • Calculation uses the entered values and stated mathematical model; quantities must use the labelled units. Supported limits: All required fields must be finite values of the exact declared type and within displayed bounds. Lists contain1–1000 finite numbers. JSON tables are numeric rectangular rows, at most100 rows and30 columns; individual tools have stricter shape/domain constraints. Flux ratio=10^(0.4 × (mB-mA)).
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