The World Atlas of the Artificial Night Sky Brightness

mondo_ridotto0p25.png (219 KB)

Colors correspond to ratios between the artificial sky brightness and the natural sky brightness of: <0.01 (black), 0.01-0.11 (dark-gray), 0.11-0.33 (blue), 0.33-1 (green), 1-3 (yellow), 3-9 (orange), 9-27 (red), <27 (white).

Source: Cinzano, P., Falchi, F., Elvidge C.D., The first world atlas of the artificial night sky brightness. Mon. Not. R. Astron. Soc. 328, 689–707 (2001)

PDF: www.inquinamentoluminoso.it/cinzano/download/0108052.pdf
Image FAQ: www.inquinamentoluminoso.it/worldatlas/pages/faq.html


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    rebelyell2006

    This map looks shoop’d. There are certain rectangular spots of dark grey, and northern Canada was completely edited out.

    j_bryon

    Northern Canada isn’t edited out….it’s just dark. No people = no light.

    samoses

    anyone have any idea why the falklands are so bright? their light signature far exceeds their expected albedo.

    MaiNiaC_MicHaeL

    Once again Alaska is not part of the world.

    Belbo

    I live in the bright spot in Florida.

    Comraduderrisch

    I like how Japan looks like a little Lite-Brite dragon.

    Puulaahi

    They cut Hawaii off! Basterds!