Weather tools

Stargazing Conditions Calculator

Rates stargazing conditions based on cloud cover, light pollution, and moon phase.

Before you use this tool

Use this if

  • Rates stargazing conditions based on cloud cover, light pollution, and moon phase.
  • You want a calculation that exposes its formula: Rating = Cloud Cover Score + Light Pollution Score + Moon Phase Score (Adjust weights and scores for specific preferences.)
  • You already have Cloud Cover, Light Pollution (Bortle Scale), Moon Phase values to enter.

Skip this if

  • You need an official emergency alert or life-safety instruction.
  • You need a certified professional forecast instead of a calculator estimate.
When to use or skip it

Use this if

  • Rates stargazing conditions based on cloud cover, light pollution, and moon phase.
  • You want a calculation that exposes its formula: Rating = Cloud Cover Score + Light Pollution Score + Moon Phase Score (Adjust weights and scores for specific preferences.)
  • You already have Cloud Cover, Light Pollution (Bortle Scale), Moon Phase values to enter.

Skip this if

  • You need an official emergency alert or life-safety instruction.
  • You need a certified professional forecast instead of a calculator estimate.