Dictionary term
Skyglow
Direct answer
Skyglow is diffuse night-sky brightness produced by artificial light, airglow, scattered moonlight, and other broad sources.
It is background light that reduces celestial contrast.
- Source
- The Great Almanac Dictionary
- Category
- Astronomy & Skywatching
- Also appears in
- Astronomy & Skywatching
- Aliases
- None listed
- Last updated
- 2026-07-16
Quick reference
- Use when
- Identify artificial and natural components instead of treating all glow alike.
- Do not use it for
- A clouded urban sky can be brighter because clouds scatter city light.
- Reference category
- Astronomy & Skywatching
- Related terms
- Atmospheric Refraction, Airmass, Zodiacal Light, Gegenschein
The story behind Skyglow
Electric lighting dramatically expanded artificial skyglow around settlements.
Skyglow in spiritual tradition
Darkness is a measurable environmental resource.
The Great Almanac frames Skyglow with educational restraint. Mystical or symbolic language may be meaningful, but it should not be exaggerated into certainty, panic, or permission to ignore ordinary responsibility.
Skyglow in the Bible
This is a factual astronomy reference. It can support wonder at the created order without becoming a claim of fate, worship, or private revelation.
Skyglow in numerology
Skyglow is not a numerology claim. Any numbers attached to it should retain their ordinary scientific, calendrical, navigational, or historical meaning unless a separate symbolic interpretation is clearly labeled.
Why Skyglow matters
It controls which faint objects and structures remain detectable.
Example in a reading: A galaxy disappears from view when its surface brightness approaches the bright sky background.
Interpretive caution: A clouded urban sky can be brighter because clouds scatter city light.
How Skyglow is used in a reading
Identify artificial and natural components instead of treating all glow alike.
Where interpretation stops
Skyglow is presented as sourced astronomy, calendrical, Earth-science, cultural, or instrument-history reference. Definitions should distinguish measured phenomena from civil convention and historical interpretation, preserve location and time dependencies, and avoid turning factual sky data into a deterministic personal claim.
Sources and editorial method
Research references used for this entry include:
- NASA Science: Night Lights - NASA observing context for zodiacal light, airglow, aurora, and other dim night-sky light.
- NASA Science: Skywatching FAQ - NASA guidance for observing stars, planets, constellations, and changing sky events.
The page starts with a direct definition, then separates use, example, caution, spiritual meaning, and historical context. For astrology, occult, demonology, curse, and spiritual warfare terms, the editorial rule is to explain the term without making fear-based, fatalistic, medical, legal, financial, or ritual-instruction claims.
Continue learning
Continue from the definition into current sky positions, space weather, and the live collective celestial view.
Open Worldwide WatchRelated terms
These related entries help place Skyglow inside a wider reference cluster instead of leaving it as a standalone keyword.
