Lunar CraterFinder by Orange County Telescope

View it or photo it. Name every crater, sea, rille, ridge… and alien camp.

Lunar CraterFinderby Orange County Telescope
Name every crater you can see. Free from Orange County Telescope.

Drag to pan, pinch or mouse-wheel to zoom. Tap Identify to show or hide labels; they refresh as you pan and zoom (up to 60×). Map: lunar north up.

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Tip: drag the photo to move the outline, pinch or mouse-wheel to resize it so the dashed circle sits on the Moon's edge.

⭐ CraterFinder Pro

Measure your telescope and your sky. Pro reads your photo and tells you:

  • 📐 Image scale (arcsec/pixel), field of view and magnification
  • 🔭 Checks against your scope + eyepiece
  • 🌬️ Tonight's seeing: excellent, good, average or poor — vs. your scope's Dawes limit

🎁 Get CraterFinder Pro free with a telescope purchase

Optional: your equipment (more accurate)
Visible tonight: easy tricky not visible now · - - - terminator (sunrise/sunset line). Dot = sun angle at the feature; tap a label for details.
Loading Moon map…
Green = smallest crater resolvable at this zoom · Red = largest crater in view ·
⚙️ Settings — units, layers, telescope, label size
4 px90