Is Light Pollution Map free?

Yes. Light Pollution Map is free and does not ask you to register or hand over an email address before you can use it.

How long does Light Pollution Map take?

One quick round, then you can leave. We file it under "A minute" — find out where your nearest genuinely dark sky is.

Does Light Pollution Map work on a phone?

Yes. Light Pollution Map works on a phone as well as it does on a laptop.

The Live Planet

Light Pollution Map

Find out where your nearest genuinely dark sky is

Visit lightpollutionmap.info More The Live Planet

lightpollutionmap.info

A minute · Works anywhere

Free, no sign-up · online since 2013

What Light Pollution Map actually is

Satellite radiance data from VIIRS is overlaid on a world map alongside the Bortle scale, so you can read night-sky brightness at any point and compare years to see where lighting has spread. Clicking a location returns numerical sky quality readings rather than a colour band alone.

Why it is worth your time

The year slider shows the glow around most cities measurably expanding over a decade, a rare case of environmental change visible at a personal scale.

Common questions

Is Light Pollution Map free?: Yes. Light Pollution Map is free and does not ask you to register or hand over an email address before you can use it.
How long does Light Pollution Map take?: One quick round, then you can leave. We file it under "A minute" — find out where your nearest genuinely dark sky is.
Does Light Pollution Map work on a phone?: Yes. Light Pollution Map works on a phone as well as it does on a laptop.
What kind of site is Light Pollution Map?: We list it under The Live Planet — what earth is doing, right this second. The year slider shows the glow around most cities measurably expanding over a decade, a rare case of environmental change visible at a personal scale.

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The Live Planet

Light Pollution Map

Find out where your nearest genuinely dark sky is

Visit lightpollutionmap.info More The Live Planet

lightpollutionmap.info

A minute · Works anywhere

Free, no sign-up · online since 2013

What Light Pollution Map actually is

Why it is worth your time

The year slider shows the glow around most cities measurably expanding over a decade, a rare case of environmental change visible at a personal scale.

Common questions

Is Light Pollution Map free?: Yes. Light Pollution Map is free and does not ask you to register or hand over an email address before you can use it.
How long does Light Pollution Map take?: One quick round, then you can leave. We file it under "A minute" — find out where your nearest genuinely dark sky is.
Does Light Pollution Map work on a phone?: Yes. Light Pollution Map works on a phone as well as it does on a laptop.
What kind of site is Light Pollution Map?: We list it under The Live Planet — what earth is doing, right this second. The year slider shows the glow around most cities measurably expanding over a decade, a rare case of environmental change visible at a personal scale.