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Dictionary term

Green Flash

Direct answer

Green Flash: A Green Flash is a brief green appearance at the upper edge of the Sun near sunrise or sunset, produced by atmospheric dispersion and often magnified by mirage conditions.

A Green Flash is a fleeting green solar-edge effect near a clear horizon.

Seasons & Earth AlmanacThe Great Almanac DictionaryUpdated 2026-07-16
Earth and season · visual guide Green Flash

A Green Flash is a fleeting green solar-edge effect near a clear horizon.

A Sun–Earth orientation for seasonal, atmospheric, tidal, and terrestrial terms.

Quick reference

Use when
Use Green Flash in atmospheric-optics guides with horizon, inversion, and solar-safety information.
Do not use it for
Never stare at the Sun or use binoculars, telescopes, or an optical viewfinder without certified solar protection.
Reference category
Seasons & Earth Almanac
Related terms
Horizon Refraction, Crepuscular Rays, Astronomical Season, Equinox

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The story behind Green Flash

Mariners reported the phenomenon for centuries, and photography later documented several distinct mirage-related forms.

Green Flash in spiritual tradition

Spiritually, the Green Flash can reward patient attention without being treated as a sign or promise.

Green Flash: fact and faith, kept distinct

This is a factual calendar, astronomy, Earth-science, cultural-history, or observational reference. It can support wonder and practical planning without becoming a claim of fate, spiritual causation, or private revelation.

Green Flash in numerology

Green Flash 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 Green Flash matters

It makes wavelength-dependent refraction visible and rewards careful observation of horizon structure.

Green Flash at work: an example

Over a clear ocean horizon, the final sliver of the setting Sun may briefly appear emerald before disappearing.

Where interpretation stops

Green Flash 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:

Source
The Great Almanac Dictionary
Category
Seasons & Earth Almanac
Also appears in
Seasons & Earth Almanac
Aliases
None listed
Last updated
2026-07-16

Observe the horizon safely

Green Flash in a book is one thing; Green Flash in your own birth chart is your life. The Oracle casts your real chart and tells you what it means for your love, your work, and your year ahead, in conversation, free.

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Horizon RefractionHorizon Refraction raises and distorts low celestial objects. Crepuscular RaysCrepuscular Rays are sunward light-and-shadow beams shaped by perspective. Astronomical SeasonAn Astronomical Season runs from one equinox or solstice to the next. EquinoxAn Equinox occurs when the Sun crosses the celestial equator. SolsticeA Solstice marks the Sun's greatest apparent northward or southward position. SunriseSunrise is the calculated first appearance of the Sun's upper edge at the horizon.

More in Seasons & Earth Almanac

Common questions

What is Green Flash?

A Green Flash is a brief green appearance at the upper edge of the Sun near sunrise or sunset, produced by atmospheric dispersion and often magnified by mirage conditions.

How is Green Flash used in an almanac?

Use Green Flash in atmospheric-optics guides with horizon, inversion, and solar-safety information.

What should I avoid when interpreting Green Flash?

Never stare at the Sun or use binoculars, telescopes, or an optical viewfinder without certified solar protection.

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Sky & TimeLive planetary positions, Moon phases, celestial events, and space weather. Birth ChartSun, Moon, rising, houses, and natal placements. CompatibilityEvery sign pairing, with strengths and friction points. Daily AlmanacMove from generic horoscopes into personal timing. NumerologyLife path numbers, personal years, and faith-aware number symbolism. DictionaryClear definitions for astrology, numerology, angels, symbols, prophecy, and Almanac concepts. SyncretismHow to test mixed spiritual practices by authority and fruit. God FirstA faith boundary for signs, seasons, and discernment. The WatchersEnochic tradition, fallen angels, and forbidden knowledge. BlogFresh articles and long-form celestial reflections. Worldwide WatchThe live sky, space weather, universal numbers, and collective field. Free Tool CabinetTen focused instruments plus quick calculators for common questions.

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