YozoraAtlas

How dark is the sky in Calabria?

Sky darkness for 8 towns and parks in Calabria, 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 Sila National Park (21.35, Bortle 4), the brightest Cosenza (19.07, Bortle 6). Milky Way season in Calabria runs March to September: on moonless nights the bright core stands clear of the horizon, climbing to about 23° 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 Calabria with every place marked

Darkest skies in Calabria

  1. Sila National ParkBortle 421.35
  2. Aspromonte National ParkBortle 421.24
  3. Serre Regional ParkBortle 421.01

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 Calabria

  1. CosenzaBortle 619.07
  2. Reggio CalabriaBortle 619.24
  3. Lamezia TermeBortle 519.63
  4. CrotoneBortle 519.66
  5. CatanzaroBortle 519.90

All 8 places in Calabria

Amber names are parks and certified dark-sky places. The figure is the Bortle class: 1 darkest, 9 city center.
Aspromonte National Park4Catanzaro5Cosenza6Crotone5Lamezia Terme5Reggio Calabria6Serre Regional Park4Sila National Park4