Definition

Noun: - Illumination of the night sky in urban areas: Sky glow refers to the brightening of the night sky, typically over populated areas, caused by the scattering of artificial light from sources like streetlights, buildings, and advertisements. It is a form of light pollution that obscures the view of stars and celestial bodies.

Usage

Sky glow is used to describe the visible effect of light pollution. - The city's sky glow made it impossible to see the Milky Way. - Astronomers are concerned about the increasing sky glow from expanding suburbs.

Advanced Usage

• "to reduce sky glow": to take measures to lessen the brightness of the night sky from artificial light.
  • The new lighting ordinance aims to reduce sky glow and protect the night environment.

Variants and Related Words

• Light pollution (n): The broader phenomenon of excessive or misdirected artificial light, of which sky glow is a primary component.
  • Light pollution includes glare, light trespass, and sky glow.

Synonyms

• Urban sky brightness: A more descriptive synonym.
• Night sky luminance: A technical term often used in environmental and astronomical contexts.

Related Phrases

• To combat sky glow: To actively work against the causes of sky glow.
  • Citizen groups are organizing to combat sky glow in our community.

Noun

1. illumination of the night sky in urban areas