CORROBORATED
CF-GEI-19780300500 CORROBORATED

The Arras Moon Misidentification

CASE FILE — CF-GEI-19780300500 — CASEFILES CLASSIFIED ARCHIVE
Date Date when the incident was reported or occurred
1978-03-17
Location Reported location of the sighting or event
Arras, Pas-de-Calais, France
Duration Estimated duration of the observed phenomenon
10 minutes
Object Type Classification of the observed object based on witness descriptions
sphere
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 March 17, 1978, at approximately 1:30 AM in Arras, northern France, a single witness observed a luminous, round object moving slowly across the sky in a south-to-northwest direction. The witness conducted the observation first with the naked eye and then with binoculars over a period of 10 minutes. The object descended slowly toward the horizon, and no unusual sounds were detected during the observation. The case was initially classified as 'C' (unidentified) by GEIPAN in 2008 but underwent re-examination. A gendarmerie investigation failed to provide additional elements regarding the phenomenon. The witness's sincerity and credibility were never questioned, and the description of the observed phenomenon was noted as quite precise and consistent. GEIPAN's re-analysis revealed that the phenomenon presented numerous common characteristics with a well-known astronomical object: the setting Moon. The Moon was confirmed to be present in the observed area of sky during the sighting window, though the witness made no mention of it in their report. The case was ultimately reclassified as 'A' (identified) - a misidentification of the setting Moon observed through partial cloud cover.
02 Timeline of Events
01:30
Initial Observation Begins
Witness observes a luminous, round object in the sky moving slowly from south to northwest direction. Begins observation with naked eye.
01:32
Binocular Observation
Witness retrieves binoculars to observe the object more closely. No unusual sounds are detected during the observation.
01:40
Object Descends to Horizon
The luminous object slowly descends toward the horizon and disappears from view, concluding the 10-minute observation period.
1978-03
Gendarmerie Investigation
Local gendarmerie conducts investigation but is unable to provide additional elements concerning the phenomenon. Witness credibility is confirmed.
2008
Initial GEIPAN Classification
GEIPAN classifies the case as 'C' (unidentified) based on available evidence and witness testimony.
Post-2008
Case Re-examination and Reclassification
GEIPAN conducts new examination of the case. Astronomical analysis confirms the Moon was present in the observed sky area. Case reclassified as 'A' (identified) - misidentification of setting Moon with partial cloud cover.
03 Key Witnesses
Anonymous Witness 1
Civilian
high
Single observer in Arras whose sincerity and credibility were never questioned by GEIPAN investigators. Observed phenomenon both with naked eye and binoculars.
"No direct quotes available from witness testimony in source documents."
04 Analyst Notes -- AI Processed
This case represents a textbook example of astronomical misidentification under specific observational conditions. The witness's credibility is not in question; rather, this illustrates how contextual factors can influence perception and interpretation. The observation occurred at 1:30 AM when the witness may have been experiencing fatigue, which GEIPAN specifically notes as influencing the witness's interpretation of what they observed. Several factors contributed to the misidentification: the observation occurred during moonset, partial cloud cover altered the Moon's typical appearance, the early morning hour, and the witness's emotional state (described as 'étonnement' - astonishment). The 10-minute duration and the use of binoculars demonstrate genuine observational effort. The fact that the witness did not recognize the Moon despite it being present in the exact location observed is significant - this demonstrates how atmospheric conditions and cognitive bias can transform familiar celestial objects into seemingly anomalous phenomena. The south-to-northwest trajectory matches the expected lunar path for the date and location.
05 Theory Comparison
BELIEVER ANALYSIS
SKEPTIC ANALYSIS
Cognitive Bias and Expectation
This case demonstrates how expectation and cognitive priming can prevent recognition of familiar objects. The witness, possibly primed to look for unusual phenomena or affected by early-morning fatigue (1:30 AM observation time), failed to recognize the Moon despite observing it for 10 minutes with binoculars. The partial cloud cover likely created unusual visual effects around the Moon, making it appear anomalous. The witness's emotional state of 'astonishment' further reinforced the interpretation of observing something unknown rather than questioning whether it might be a known celestial object.
06 Verdict
ANALYST VERDICT
This case is definitively explained as a misidentification of the setting Moon observed under partial cloud cover. GEIPAN's classification as 'A' (identified with certainty) is fully justified. The phenomenon's characteristics - shape, luminosity, duration, trajectory, and silence - all align perfectly with astronomical observation of the Moon. While this case holds little significance for UAP research, it serves important educational value in demonstrating how atmospheric conditions, observer fatigue, and psychological factors can transform mundane celestial objects into seemingly unexplained phenomena. The rigorous re-examination by GEIPAN, which reclassified the case from 'C' to 'A', exemplifies proper scientific methodology in UFO investigation.
AI CONFIDENCE SCORE:
85%
07 Community Discussion
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