CORROBORATED
CF-GEI-19770900433 CORROBORATED
The Malaucène Orange Rectangle: Moonrise Misidentification
CASE FILE — CF-GEI-19770900433 — CASEFILES CLASSIFIED ARCHIVE
Date Date when the incident was reported or occurred
1977-09-18
Location Reported location of the sighting or event
Malaucène, Vaucluse, Provence-Alpes-Côte d'Azur, France
Duration Estimated duration of the observed phenomenon
Approximately 5 minutes
Object Type Classification of the observed object based on witness descriptions
rectangle
Source Origin database or archive this case was sourced from
geipan
Witnesses Number of known witnesses who reported the event
2
Country Country where the incident took place
FR
AI Confidence AI-generated credibility score based on source reliability, detail consistency, and corroboration
85%
On the night of September 18, 1977, between 22:30 and 22:35, two witnesses in Malaucène (Vaucluse department, 84) observed what they described as an orange-fire colored luminous phenomenon in the direction of Bel-Air hill. The witnesses reported seeing a rectangular shape that disappeared rapidly behind the hill while continuing to illuminate the surrounding environment. A gendarmerie investigation located a third potential witness who reported seeing an important light behind another hill approximately three weeks earlier, but this testimony was deemed too imprecise (uncertain date, unknown time) to be included in the official analysis. Despite a press appeal for additional witnesses, no other testimonies were collected.
This case was originally classified as 'C' (unidentified) by GEIPAN but was later revisited using modern analytical software and accumulated investigative experience. The two primary witnesses were considered credible and sincere throughout the investigation, and their description of the observed phenomenon was relatively precise and consistent. The observation occurred at night under conditions where fatigue may have influenced interpretation of visual perception.
GEIPAN's re-examination determined that the phenomenon described shared numerous characteristics—including shape, size, color, and luminous glow—with a well-known astronomical object: the setting moon. Critically, astronomical data confirmed that the Moon was indeed present in the observed section of sky at the time of the sighting, though the witnesses made no mention of it in their testimony. The case was reclassified to 'A' (identified with certainty) as a misidentification with the Moon at moonset, representing a case of medium strangeness where visual perception was accurate but cognitive interpretation was influenced by context and expectation.
02 Timeline of Events
1977-09-18 22:30
Initial Observation Begins
Two witnesses in Malaucène begin observing an orange-fire colored luminous phenomenon in the direction of Bel-Air hill.
1977-09-18 22:30-22:35
Rectangular Shape Observed
Witnesses observe a rectangular shape that appears to be illuminating the surrounding landscape with orange-fire colored light.
1977-09-18 22:35
Phenomenon Disappears Behind Hill
The rectangular object disappears behind Bel-Air hill but continues to illuminate the immediate environment before observation ends.
1977-09 (days after)
Gendarmerie Investigation Initiated
Local gendarmerie conducts investigation, interviews two primary witnesses, and locates a third potential witness with a less precise account.
1977-09 (investigation period)
Press Appeal Yields No Results
Public appeal for additional witnesses published in local press produces no additional testimonies.
1977 (original classification)
Original Classification: C (Unidentified)
GEIPAN initially classifies case as 'C' - unidentified phenomenon of medium strangeness.
Post-2000s (re-examination)
Case Revisited with Modern Tools
GEIPAN re-examines case using modern analytical software and accumulated investigative experience, conducting astronomical analysis.
Re-examination conclusion
Reclassification: A (Identified)
Case reclassified to 'A' after determining phenomenon was misidentification of the setting Moon, which was astronomically confirmed to be in the observed sky location.
03 Key Witnesses
Anonymous Witness 1
Civilian
high
Primary witness from Malaucène. Credibility and sincerity confirmed by gendarmerie investigation.
"Described an orange-fire colored rectangular luminous phenomenon that disappeared behind Bel-Air hill while continuing to illuminate the surrounding area."
Anonymous Witness 2
Civilian
high
Secondary witness from Malaucène who corroborated the primary witness's account.
"Confirmed observation of the rectangular orange phenomenon and its illumination effects."
Anonymous Witness 3
Civilian
low
Potential witness identified during gendarmerie investigation who reported seeing a light behind another hill approximately three weeks earlier.
"Testimony excluded from analysis due to imprecise date and unknown time of observation."
04 Analyst Notes -- AI Processed
This case represents a textbook example of astronomical misidentification and demonstrates the value of case re-examination with improved analytical tools. The witnesses' credibility was never questioned by investigators, highlighting that sincere, reliable observers can still misinterpret conventional phenomena under certain conditions. The rectangular shape reported is consistent with the Moon's appearance when partially obscured by terrain features or atmospheric distortion near the horizon. The orange-fire coloration is characteristic of the Moon when viewed through thick atmospheric layers during moonset, caused by Rayleigh scattering of shorter wavelengths.
Several factors support the astronomical explanation: (1) precise temporal and directional correlation between witness reports and lunar position; (2) the phenomenon's disappearance behind a hill consistent with the Moon's trajectory; (3) the continuing illumination of the landscape after the object disappeared, typical of moonlight; (4) absence of any mention of the Moon by witnesses who would have expected to see it. The third witness's vague report from three weeks prior adds little evidentiary value and was appropriately excluded. The case illustrates how nocturnal observations, fatigue, and unfamiliarity with astronomical phenomena can lead to UAP reports. GEIPAN's reclassification from C to A demonstrates the importance of applying astronomical analysis to historical cases.
05 Theory Comparison
BELIEVER ANALYSIS
Rectangular UAP Coincidence
While the official explanation is compelling, some might argue that truly rectangular UAPs have been reported in numerous cases worldwide, and the precise timing with the Moon's position could be coincidental. However, this theory is weakened by the complete absence of additional witnesses despite press appeals, the perfect match between described characteristics and lunar phenomena, and the astronomical confirmation of the Moon's presence. This theory lacks supporting evidence and is superseded by the more parsimonious astronomical explanation.
SKEPTIC ANALYSIS
Cognitive Interpretation Error
This represents a classic case where reliable witnesses with accurate visual perception made an interpretive error. The witnesses saw exactly what was there—the setting Moon—but their cognitive framework, possibly influenced by fatigue, expectation, and unfamiliarity with lunar phenomena, led them to categorize it as anomalous. The absence of Moon mention in testimony despite its confirmed presence is diagnostic of selective attention and confirms the misidentification. No anomalous phenomenon occurred; only a misinterpretation of a common astronomical event.
06 Verdict
ANALYST VERDICT
This case is conclusively explained as a misidentification of the setting Moon. The physical evidence is compelling: astronomical calculations confirm the Moon's presence in the exact sky location observed at the precise time reported, the described characteristics (orange color, rectangular appearance, illumination effects) perfectly match lunar phenomena at moonset, and the disappearance behind terrain corresponds to the Moon's trajectory. While the witnesses were credible and their visual perception accurate, their interpretation was influenced by contextual factors including nighttime conditions and possible fatigue. This case has minimal significance as a UAP incident but serves as an excellent educational example of how conventional astronomical objects can be misperceived, and demonstrates the value of rigorous re-examination of historical cases with modern analytical tools. The GEIPAN classification 'A' (identified with certainty) is fully justified.
AI CONFIDENCE SCORE:
85%
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