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Astronomy Calculator

Calculate astronomical distances, star magnitudes, and orbital periods.

Science v1.0.0 233 uses

About This Tool

A collection of astronomy calculators for stargazers and students. Convert between astronomical distance units, calculate apparent and absolute magnitudes, estimate orbital periods using Kepler's law, and explore the scale of the solar system.

How to Use

  1. 1 Select a calculator tab (Distance, Magnitude, Orbits, Scale)
  2. 2 Enter your known values
  3. 3 Get instant results with explanations
  4. 4 Explore preset values for known celestial objects
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