Seasons and sky
Brocken Spectre
Direct answer
Brocken Spectre: A Brocken Spectre is an enlarged observer shadow cast onto nearby fog or cloud, often surrounded by a Glory.
A Brocken Spectre is a magnified-looking shadow projected onto mist.
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At a glance
- Found in
- Seasons & Earth Almanac
- Related
- Glory, Earth Shadow, Astronomical Season, Equinox
A Brocken Spectre is a magnified-looking shadow projected onto mist.
A Sun-Earth orientation for seasonal, atmospheric, tidal, and terrestrial terms.
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The story behind Brocken Spectre
The name comes from reports on the Brocken mountain in Germany, where fog and low Sun frequently create the effect.
Why Brocken Spectre matters
Brocken Spectre explains an uncanny mountain sight through perspective, moving droplets, and the lack of distance cues.
How to read Brocken Spectre
Brocken Spectre in mountain safety and atmospheric-optics references applies when the Sun is behind the observer.
Brocken Spectre in practice: an example
A hiker on a ridge may see a giant shadow moving on the fog bank opposite the Sun.
Where readings of Brocken Spectre go wrong
A common error is to approach cliff edges while watching or photographing the effect; maintain mountain-weather awareness.
Sources and editorial method
Research references used for this entry include:
- National Weather Service: Atmospheric Optics - NWS science reference for halos, pillars, sundogs, green flashes, rays, and related optical displays.
- Source
- The Great Almanac Dictionary
- Category
- Seasons & Earth Almanac
- Last updated
- 2026-09-26
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Common questions
What is a Brocken Spectre?
A Brocken Spectre is an enlarged observer shadow cast onto nearby fog or cloud, often surrounded by a Glory.
What do people get wrong about a Brocken Spectre?
A common error is to approach cliff edges while watching or photographing the effect; maintain mountain-weather awareness.
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