Definitions from Wiktionary (Bortle scale)
▸ noun: (astronomy) A nine-level numeric scale that measures the night sky's brightness of a particular location.
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▸ noun: (astronomy) A nine-level numeric scale that measures the night sky's brightness of a particular location.
Similar:
Antoniadi scale,
star-map,
Torino scale,
uranometry,
rating,
astrophotometry,
Besselian element,
birthline,
star chart,
error box,
more...
Opposite:
▸ Words similar to Bortle scale
▸ Usage examples for Bortle scale
▸ Idioms related to Bortle scale
▸ Wikipedia articles (New!)
▸ Words that often appear near Bortle scale
▸ Rhymes of Bortle scale
▸ Invented words related to Bortle scale