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OrbitLab
How bright is this object, really?
Absolute magnitude answers 'how bright would this look from a standard 10 parsecs away?' — it's the fair, distance-corrected way to compare the true brightness of objects at wildly different distances.
Two stars can have identical apparent brightness in the sky purely by coincidence of distance — absolute magnitude is what actually reveals which one is the intrinsically more luminous star.
Molar mass of any chemical formula (e.g. H2O, C6H12O6, Ca(OH)2).
OpenPercent composition of an element within a chemical formula.
OpenSimplest whole-number ratio formula from elemental masses or percentages.
OpenPercent yield from actual and theoretical reaction yields.
OpenAbsolute magnitude
0
What you entered
5 × (log₁₀(d) − 1)
5 × (log₁₀(10) − 1)= 0M = m − 5(log₁₀(d) − 1)
0 − 0= 0Result
Absolute magnitude: 0
Corrected for distance, this object's true (absolute) magnitude is 0.