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As its name suggests, ALSACAT is my comprehensive catalog of UFO sighting reports in Alsace, the region is the North-East of France, whether they are "explained" or "unexplained".

The ALSACAT catalog is made of case files with a case number, summary, quantitative information (date, location, number of witnesses...), classifications, all sources mentioning the case with their references, a discussion of the case in order to evaluate its causes, and a history of the changes made to the file. A general index and thematic sub-catalogs give access to these Alsatian case files.

Case of Vendenheim, on July 20, 2007:

Case number:



In a listing of UFO sighting reports in the Haut-Rhin on their website, the Alsatian ufology association SPICA noted that on Friday, July 20, 2007, at 11:10 p.m. in Vendenheim, something "Circular, round or disk (2D)" of white color was seen, the case being solved as "artificial light reflection (Projector)".


Temporal data:

Date: July 20, 2007
Time: 11:10 p.m.
Duration: ?
First known report date: 2015
Reporting delay: Day, 7 years.

Geographical data:

Department: Bas-Rhin
City: Vendenheim
Place: ?
Latitude: 48.665
Longitude: 7.708
Uncertainty ratio: 2 km

Witnesses data:

Number of alleged witnesses: ?
Number of known witnesses: ?
Number of named witnesses: ?
Witness(es) ages: ?
Witness(es) types: ?

Ufology data:

Reporting channel: Listing of sightings by the regional ufology group SPICA.
Type of location: ?
Visibility conditions: Night
UFO observed: Yes
UFO arrival observed: ?
UFO departure observed: ?
Entities: No
Photographs: No.
Sketch(s) by witness(es): No.
Sketch(es) approved by witness(es): No.
Witness(es) feelings: ?
Witnesses interpretation: ?


Hynek: NL
ALSACAT: Skytracers.



City Date and hour of observation General shape
General color
VENDENHEIM Friday 20 July 2007 at 11:10 p.m. Circular, round or disc (2D)
Artificial luminous reflection (projector)
Artificial luminous reflection (projector)


The explanation, noted by the SPICA group, is likely to be related to this:

Vendenheim is at 10 kilometers in straight line from the center of Strasbourg.



Sources references:

* = Source is available to me.
? = Source I am told about but could not get so far. Help needed.

File history:


Main author: Patrick Gross
Contributors: None
Reviewers: None
Editor: Patrick Gross

Changes history:

Version: Create/changed by: Date: Description:
0.1 Patrick Gross February 27, 2016 Creation, [sp4].
1.0 Patrick Gross February 27, 2016 First published.

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This page was last updated on February 27, 2016.