CORROBORATED
CF-GEI-20080402067 CORROBORATED
The Lyon Moon Misidentification Incident
CASE FILE — CF-GEI-20080402067 — CASEFILES CLASSIFIED ARCHIVE
Date Date when the incident was reported or occurred
2008-04-12
Location Reported location of the sighting or event
Lyon, Rhône, France
Duration Estimated duration of the observed phenomenon
2-3 minutes
Object Type Classification of the observed object based on witness descriptions
light
Source Origin database or archive this case was sourced from
geipan
Witnesses Number of known witnesses who reported the event
1
Country Country where the incident took place
FR
AI Confidence AI-generated credibility score based on source reliability, detail consistency, and corroboration
85%
On April 12, 2008, at 2:48 AM in Lyon, France, a single witness observed a peculiar red-orange light in the night sky. The witness was intrigued by what they perceived as an unusual luminous phenomenon that maintained a consistent appearance before disappearing below the horizon after two to three minutes of observation. The sighting was reported to GEIPAN, France's official UFO investigation service operated by CNES (Centre National d'Études Spatiales).
GEIPAN's investigation determined that the witness's description of the phenomenon closely matched the visual characteristics of the Moon during moonset. The timing of the observation (2:48 AM), the direction of the sighting, the red-orange coloration, and the object's movement toward the horizon all aligned perfectly with the Moon's position and behavior at that specific time and location. The atmospheric refraction that occurs when celestial bodies are near the horizon commonly produces the reddish-orange coloration observed by the witness.
This case exemplifies a common category of UFO reports that result from unfamiliarity with astronomical phenomena under specific atmospheric conditions. GEIPAN classified this incident as Category A, indicating a case with certain identification where the explanation is definitive and supported by verifiable data.
02 Timeline of Events
2008-04-12 02:48
Initial Observation
Witness notices a peculiar red-orange light in the sky and begins observation
02:48-02:51
Continuous Observation
Witness observes the red-orange light for approximately 2-3 minutes, noting its distinctive coloration
~02:51
Phenomenon Disappears
The light disappears below the horizon, consistent with moonset timing
Post-observation
Report Filed
Witness reports the observation to GEIPAN for investigation
Investigation period
GEIPAN Analysis
GEIPAN conducts astronomical analysis, confirming Moon position matched observation direction and timing
Case closure
Category A Classification
Case definitively classified as misidentification of the setting Moon with certainty
03 Key Witnesses
Anonymous Witness
Civilian
medium
Single witness who observed the phenomenon at 2:48 AM and reported it to GEIPAN. Demonstrated responsible citizen behavior by reporting what they perceived as unusual.
"Intrigued by the presence of a particular red-orange light in the sky."
04 Analyst Notes -- AI Processed
This case demonstrates low strangeness and low consistency factors that are characteristic of astronomical misidentifications. The single-witness testimony, combined with a description matching typical lunar appearance during moonset, immediately suggested a prosaic explanation. GEIPAN's astronomical analysis confirmed that the Moon was positioned directly in the witness's line of sight at the reported time, undergoing moonset precisely when and where the observation occurred.
The red-orange coloration reported by the witness is a textbook example of Rayleigh scattering effects on celestial bodies near the horizon. When the Moon (or Sun) is low on the horizon, its light must pass through a much thicker layer of Earth's atmosphere, scattering shorter wavelengths (blue/green) and allowing longer wavelengths (red/orange) to predominate. This same optical phenomenon creates red sunsets and can make the Moon appear dramatically different from its typical appearance when higher in the sky. The witness's unfamiliarity with this common astronomical effect, combined with the unusual observation time (2:48 AM), likely contributed to the initial sense of strangeness.
05 Theory Comparison
BELIEVER ANALYSIS
SKEPTIC ANALYSIS
Atmospheric Optical Phenomenon
Even before astronomical confirmation, the description of a red-orange light moving toward and disappearing at the horizon over several minutes strongly suggests a celestial body affected by atmospheric scattering. The witness's observation time (very early morning) and the color description are classic indicators of astronomical objects viewed through thick atmospheric layers. No unusual flight characteristics, maneuvers, or behaviors inconsistent with celestial motion were reported.
06 Verdict
ANALYST VERDICT
This case represents a definitive misidentification of the setting Moon observed under atmospheric conditions that altered its normal appearance. GEIPAN's Category A classification reflects absolute certainty in this explanation, with astronomical data providing irrefutable corroboration. The case holds minimal significance for UAP research but serves valuable educational purposes, illustrating how atmospheric optics can transform familiar celestial objects into seemingly anomalous phenomena. The witness's honest reporting and GEIPAN's thorough investigation contribute to the important work of cataloging and explaining reported sightings, helping to refine databases and identify patterns that distinguish genuine anomalies from natural phenomena. This case is scientifically resolved with 100% confidence.
AI CONFIDENCE SCORE:
85%
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