YozoraAtlas

How dark is the sky in Pest?

Sky darkness for 10 towns and parks in Pest, 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 Danube-Ipoly National Park (20.37, Bortle 5), the brightest Gyál (18.97, Bortle 6). Milky Way season in Pest runs May to July: on moonless nights the bright core stands clear of the horizon, climbing to about 14° at its highest.

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 Pest with every place marked

Darkest skies in Pest

  1. Danube-Ipoly National ParkBortle 520.37
  2. NagykőrösBortle 520.18
  3. MonorBortle 519.90

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 Pest

  1. GyálBortle 618.97
  2. SzigetszentmiklósBortle 619.10
  3. DunakesziBortle 619.19
  4. ÉrdBortle 619.34
  5. GödöllőBortle 619.38

All 10 places in Pest

Amber names are parks and certified dark-sky places. The figure is the Bortle class: 1 darkest, 9 city center.
Cegléd5Danube-Ipoly National Park5Dunakeszi6Gyál6Gödöllő6Monor5Nagykőrös5Szigetszentmiklós6Vác5Érd6