byteCoderthis is the bortle scale. it's used to measure how dark the night sky is in a given place. until rel...
Shared by QC @QiaochuYuan on X
this is the bortle scale. it's used to measure how dark the night sky is in a given place. until relatively recently in human history i imagine every human being who ever lived could see a bortle 1 sky every night of their lives, weather permitting. i personally have never seen https://t.co/dg7WeKukEI
this is the bortle scale. it's used to measure how dark the night sky is in a given place. until relatively recently in human history i imagine every human being who ever lived could see a bortle 1 sky every night of their lives, weather permitting. i personally have never seen https://t.co/dg7WeKukEI