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OrbitLab
Brightness as seen from here.
The distance modulus formula converts a star's true (absolute) brightness into how bright it looks from a specific distance — light spreads out and fades the farther it travels, so distance alone changes apparent brightness dramatically.
The magnitude scale is famously backwards from intuition — it's logarithmic and inverted, so the brightest visible stars have small or even negative magnitudes, while faint telescope-only objects have large positive numbers.
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.
OpenApparent magnitude
4.83
What you entered
5 × (log₁₀(d) − 1)
5 × (log₁₀(10) − 1)= 0m = M + 5(log₁₀(d) − 1)
4.83 + 0= 4.83Result
Apparent magnitude: 4.83
From 10 parsecs away, this object would appear at magnitude 4.83 — lower numbers are brighter.