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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.

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Case of Vendenheim, on August 29, 2010:

Case number:



In a listing of UFO sighting reports in the Haut-Rhin on their website, the Alsatian ufology association SPICA noted that on Sunday, August 29, 2010, at 01:30 in Vendenheim, a "ball, ball or melon (3D)" of red color was seen, it remained unidentified but they propose the strong hypothesis it was something of the "reduced aeronautics" type.


Temporal data:

Date: August 29, 2010
Time: 01:30 a.m.
Duration: ?
First known report date: 2014
Reporting delay: Hours, 4 years.

Geographical data:

Department: Bas-Rhin
City: Vendenheim
Place: ?
Latitude: 48.668
Longitude: 7.710
Uncertainty radius: 3 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: Probable Chinese lanterns.



City Date and hour of observation General shape
General color
VENDENHEIM Sunday 29 August 2010 at 01h30 ball, balloon or melon (3D)
Aeronautical reduced
Strong hypothesis



By the expression "aeronautical reduced" by the SPICA, and the red color, it is understandable that they thought it was one or more Chinese lanterns.


Probable Chinese lanterns.

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 July 30, 2015 Creation, [spa1].
1.0 Patrick Gross July 30, 2015 First published.

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This page was last updated on July 30, 2015.