YozoraAtlas

How dark is the sky in Subcarpathia?

Sky darkness for 8 towns and parks in Subcarpathia, worked out from NASA satellite images of light at night (2025). 3 of them have skies of Bortle 4 or darker, where the Milky Way shows overhead. The darkest is the Bieszczady Starry Sky Park (21.76, Bortle 3), the brightest Rzeszów (18.50, Bortle 7). The bright core of the Milky Way never climbs clear of the horizon haze anywhere in Subcarpathia while the sky is fully dark; the rest of the band passes overhead, with the longest moonless nights from September to April.

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 Subcarpathia with every place marked

Darkest skies in Subcarpathia

  1. the Bieszczady Starry Sky ParkBortle 321.76
  2. Pogórze Przemyskie Landscape ParkBortle 421.57
  3. Magura National ParkBortle 421.54

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 Subcarpathia

  1. RzeszówBortle 718.50
  2. Stalowa WolaBortle 619.01
  3. MielecBortle 619.31
  4. TarnobrzegBortle 519.61
  5. PrzemyślBortle 519.65

All 8 places in Subcarpathia

Amber names are parks and certified dark-sky places. The figure is the Bortle class: 1 darkest, 9 city center.
Magura National Park4Mielec6Pogórze Przemyskie Landscape Park4Przemyśl5Rzeszów7Stalowa Wola6Tarnobrzeg5the Bieszczady Starry Sky Park3