Earth and Moon Viewer

Earth and Moon Viewer turns coordinates, dates, viewpoints, and image layers into custom astronomical stills. It can show Earth's sunlit boundary, cloud and topographic layers, lunar formations, and mapped worlds beyond the Moon, but it works like a sturdy scientific form rather than a silky 3D globe.

What is Earth and Moon Viewer?

Choose where the imaginary camera sits, what world it points toward, and which surface data should supply the scenery. Earth can be viewed from the Sun, Moon, night side, an orbiting satellite, a city, or coordinates and altitude of your choosing. Separate routes cover Moon maps and named formations, while a planetary annex reaches from Mercury to Pluto and Charon. The charm is in the precision: instead of nudging a glossy globe, you assemble a request and receive a purpose-built image. Its architecture has the satisfying click of an old observatory control panel, and the unusually deep choices still make it useful for comparing daylight, terrain, clouds, and perspective.

What you can do there

• Generate Earth views from chosen viewpoints and imagery
• Generate Moon views and maps
• Inspect mapped surfaces of selected solar-system bodies

Why we picked it

Few web relics remain this specific and this capable. Earth and Moon Viewer has been public since December 1994, yet its central trick still lands: describe a cosmic vantage point and let the server draw what belongs in frame. The plain interface keeps attention on the astronomy, and the range of datasets rewards both quick curiosity and careful classroom questions.

How to get the most from it

Begin with Earth from the Sun to make the day-night boundary easy to read, then switch to a city or enter latitude, longitude, and altitude for a more personal flyover. Compare the same viewpoint with topographic and cloud imagery. Save expert mode for later; its extra parameters are more rewarding once the basic camera choices make sense.

Good to know

This is a form-driven CGI tool, not a draggable 3D globe. Larger images require more server work, so a request may take longer when the service is busy. Views of the additional solar-system bodies do not calculate day and night, and generated imagery or live data feeds may have limits that are not obvious from the index page.

Who made it, and when?

John Walker is the credited creator or organization. The earliest supported launch date we found is December 1994.