e/Bortle Dark-Sky Scale

Information
has gloss	eng: The Bortle Dark-Sky Scale is a nine-level numeric scale that measures the night skys and stars brightness (naked-eye and stellar limiting magnitude) of a particular location. It quantifies the astronomical observability of celestial objects and the interference caused by light pollution and skyglow. John E. Bortle created the scale and published it in the February 2001 edition of Sky & Telescope magazine to help amateur astronomers compare the darkness of observing sites. The scale ranges from class 1, the darkest skies available on Earth, through class 9, inner-city skies.
lexicalization	eng: Bortle dark sky scale
lexicalization	eng: Bortle dark-sky scale
instance of	c/Scales

Meaning
French
has gloss	fra: Léchelle de Bortle est une échelle de mesure de la pollution lumineuse créée pour lédition de février 2001 du magazine Sky & Telescope par John Bortle.
lexicalization	fra: Echelle de Bortle
lexicalization	fra: échelle de Bortle
Castilian
lexicalization	spa: Escala de cielo oscuro de bortle