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Apparent magnitude measures star brightness from Earth on a logarithmic scale where each unit represents 2.512× intensity difference.

Trin-for-trin guide

  1. 1Enter star luminosity or apparent magnitude
  2. 2Calculate brightness using magnitude scale
  3. 3Results show visual brightness comparison

Løste eksempler

Input
m = -1.5 (Sirius)
Resultat
Brightest star visible
Lower number = brighter

Almindelige fejl at undgå

  • Assuming higher number = brighter
  • Forgetting zero point calibration

Ofte stillede spørgsmål

Why logarithmic?

Human perception is logarithmic; equal brightness intervals feel equal.

Can magnitude be negative?

Yes; brighter stars have lower/negative magnitudes.

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