Free · Sky & science

Moon Phase Finder

See the Moon's phase, illumination, and the next four quarter phases for any date.

  • Clear answer
  • Runs in your browser
  • No signup

Moon calendar

What does the Moon look like?

Moon phase

Choose a date

The Moon phase will appear here.

Powered by astronomy-engine, an open-source library.

Three simple steps

How to use it

  1. Choose the date you want to check.
  2. See the phase and lit percentage.
  3. Use the upcoming quarters to plan moon watching.

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