YozoraAtlas

How dark is the sky in New Brunswick?

Sky darkness for 11 towns and parks in New Brunswick, worked out from NASA satellite images of light at night (2025). 7 of them have skies of Bortle 4 or darker, where the Milky Way shows overhead. The darkest is Mount Carleton Provincial Park (21.86, Bortle 3), the brightest Moncton (18.25, Bortle 8).

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 New Brunswick with every place marked

Darkest skies in New Brunswick

  1. Mount Carleton Provincial ParkBortle 321.86
  2. Kouchibouguac National ParkBortle 421.67
  3. The Anchorage Provincial ParkBortle 421.60
  4. Fundy National ParkBortle 421.53
  5. Herring Cove Provincial ParkBortle 421.41

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 New Brunswick

  1. MonctonBortle 818.25
  2. Saint JohnBortle 818.32
  3. FrederictonBortle 718.61

All 11 places in New Brunswick

Amber names are parks and certified dark-sky places. The figure is the Bortle class: 1 darkest, 9 city center.
Fredericton7Fundy National Park4Herring Cove Provincial Park4Hopewell Rocks Provincial Park4Irving Nature Park5Kouchibouguac National Park4Mactaquac Provincial Park4Moncton8Mount Carleton Provincial Park3Saint John8The Anchorage Provincial Park4