YozoraAtlas

How dark is the sky in North Brabant?

Sky darkness for 12 towns and parks in North Brabant, worked out from NASA satellite images of light at night (2025). None of them have skies of Bortle 4 or darker, where the Milky Way shows overhead. The darkest is De Groote Peel National Park (20.16, Bortle 5), the brightest Eindhoven (18.76, Bortle 7). The bright core of the Milky Way never climbs clear of the horizon haze anywhere in North Brabant while the sky is fully dark; the rest of the band passes overhead, with the longest moonless nights from September to March.

19 Bortle class, 1 pristine to 9 city center park or dark-sky place city

Numbers like 21.95 or 16.97 are the brightness of the sky overhead on a clear, moonless night, in mag/arcsec². The scale runs backwards: a lower number means a brighter sky, from about 22 for a natural sky to about 17 in a city center.
How the readings are made

NASA satellite night-lights map of North Brabant with every place marked

Darkest skies in North Brabant

  1. De Groote Peel National ParkBortle 520.16
  2. Van Gogh National ParkBortle 519.95
  3. De Zoom-Kalmthoutse Heide National ParkBortle 519.86

Among the places on this site. Plenty of land between them is just as dark, with no town or park to name it by.

Brightest city skies in North Brabant

  1. EindhovenBortle 718.76
  2. BredaBortle 619.02
  3. TilburgBortle 619.11
  4. 's-HertogenboschBortle 619.16
  5. HelmondBortle 619.24

All 12 places in North Brabant

Amber names are parks and certified dark-sky places. The figure is the Bortle class: 1 darkest, 9 city center.
's-Hertogenbosch6Bergen op Zoom6Breda6De Groote Peel National Park5De Zoom-Kalmthoutse Heide National Park5Eindhoven7Helmond6Oosterhout6Oss6Roosendaal6Tilburg6Van Gogh National Park5