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sci.magnitude-flux-conversion Calculator
Converts between stellar flux and apparent magnitude using m = −2.5 log₁₀(F/F₀) and the AB or Vega photometric system zero points. The Vega system defines m = 0 for Vega's flux (3,631 Jy in the AB system) — this zero point is the historical reference for optical astronomy photometry.
Inputs
Apparent Magnitude
Reference formula or conversion factor shown for context.
Zero Point Jy
Reference formula or conversion factor shown for context.
Wavelength Nm
Distance between successive wave crests. Related to frequency: λ = speed / frequency.
Results
flux density (Jy)
Sample size or count used in the calculation.
flux density (erg/s/cm²/Hz)
Sample size or count used in the calculation.
magnitude m
Sample size or count used in the calculation.
F = F₀ × 10^(-m/2.5)
Reference formula or conversion factor shown for context.
Vega (m=0)
Reference formula or conversion factor shown for context.
5th mag flux
Reference formula or conversion factor shown for context.