How do I view the light pollution map overlay?

WEB

This article applies to Photo Ephemeris Web PRO

From the map layers control (top left of map), first select "Overlays" then click enable Light Pollution:

A couple things to note:

• Selecting the light pollution overlay will deselect any Skyfire forecast (and vice versa), to avoid a confusing appearance on the map
• If you are using Google Maps, you will need to zoom out quite far to view the Light Pollution overlay, as the data is available only at limited zoom levels (Leaflet, used for Default map styles, is able to 'overzoom' the data on demand)