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Luminosity Formula for Absolute Magnitude

Luminosity is the total amount of energy emitted by a star, galaxy or other astronomical object per unit time. Absolute magnitude is a measure of the luminosity of a celestial object on a logarithmic astronomical magnitude scale. It is the apparent magnitude, or the observed visible brightness from Earth, if the object was at a distance of 10 parsecs.

The luminosity equals the nominal solar luminosity times 10 to the power 0.4 times 4.83 minus the absolute magnitude.

Formula

QuantityVariable["L", "Luminosity"] == 10^(0.4*(4.83 - QuantityVariable["M", "Unitless"]))*Quantity[1, "NominalSolarLuminosity"]

symbol description physical quantity
L luminosity "Luminosity"
M absolute magnitude "Unitless"

Forms

Examples

Get the resource:

In[1]:=
ResourceObject["Luminosity Formula for Absolute Magnitude"]
Out[1]=

Get the formula:

In[2]:=
FormulaData[ ResourceObject["Luminosity Formula for Absolute Magnitude"]]
Out[2]=

Use some values:

In[3]:=
FormulaData[ ResourceObject[ "Luminosity Formula for Absolute Magnitude"], {QuantityVariable[ "L","Luminosity"] -> Quantity[1, "NominalSolarLuminosity"]}]
Out[3]=

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