YozoraAtlasyo·zo·ra (夜空) n. [Jap.] night sky

How dark is the sky in New South Wales?

Sky darkness for 68 towns and parks in New South Wales, worked out from NASA satellite images of light at night (2025). 43 of them have skies of Bortle 4 or darker, where the Milky Way shows overhead. The darkest is Sturt National Park (21.95, Bortle 2), the brightest Sydney (17.66, Bortle 8). Milky Way season in New South Wales runs February to October: on moonless nights the bright core stands clear of the horizon, climbing to about 90° 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

All 68 places in New South Wales

Amber names are parks and certified dark-sky places. The figure is the Bortle class: 1 darkest, 9 city center.
Abercrombie River National Park3Armidale5Bald Rock National Park3Barrington Tops National Park3Bathurst6Beowa National Park3Blue Mountains National Park4Boonoo Boonoo National Park3Booti Booti National Park3Border Ranges National Park4Bouddi National Park5Brisbane Water National Park5Budderoo National Park4Central Coast5Cessnock5Cocoparra National Park3Coffs Harbour5Cunnawarra National Park2Dharug National Park4Dorrigo National Park3Dubbo6Eurobodalla National Park3Gardens of Stone National Park3Garigal National Park5