Drag a country onto Mars/Jupiter/Moon to see how big it would look

I built a little interactive tool: you can drag any country onto Mars / Jupiter / the Moon (etc.) and see how the size looks on that planet.

It’s basically for answering questions like:

• “How big would the US look on Mars?”
• “How does Greenland look on the Moon?”
• “How large is Jupiter’s Great Red Spot compared to a country?”

Sources:

• Try it here: Online playground
• Github Repo: Repo

Code is open source — feedback / issues / PRs are welcome.