Where the nights are darkest
Křimice has the darkest nights (brightness 5.1), then Litice and Újezd. Half of the neighbourhoods are brighter than 18.1. Ranking of 14 neighbourhoods by the light a satellite sees at night.
How we calculate it
The mean night brightness at addresses in the neighbourhood from the VIIRS satellite over the last full year (a yearly composite in squares of about 500 m, nW/cm²/sr). It measures the light of street lamps, windows, signs and traffic that shines upwards: the lower the number, the darker the sky and the more stars. Right under a lamp it can be brighter than the number for its square says.
Without neighbourhoods with fewer than 2 000 residents: they are mostly fields or forest, and a handful of addresses would otherwise top every ranking. You’ll find them in the list of all neighbourhoods.
Full methodology →
For journalists: you are free to quote the figures, please credit the source with a link:
Source: Městomat, Where the nights are darkest, https://mestomat.cz/en/plzen/ctvrti/nejtmavsi-noc
Data for articles and websites →