Apparent Brightness Flux
Calculator

Inputs

Received flux (W/m²)
1,361.166465

Results

Received flux (W/m²)
1,361.166465
Ratio to the solar constant
1.000122

Astronomy results

Received flux (W/m²)1,361.166465
Ratio to the solar constant1.000122

formula-map diagram

Received flux (W/m²)
1,361.166465
Ratio to the solar constant
1.000122

Astronomical relationship

Formula

b = L / (4π d²)

= 1361.1664654086

Note

This result is a simplified model: it applies the displayed textbook formula to the values you entered, assuming ideal spherical bodies, circular orbits, blackbody radiation and perfect optics, and ignoring atmospheric seeing, relativistic corrections beyond those stated, cosmological models and measurement uncertainty. Use published ephemerides and catalogue data for real observations.

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