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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 June 24, 2010:

Case number:



Someone apparently reported his observation by the web to the Alsatian ufology association SPICA. The date is June 24, 2010, and the place would be Vendenheim in the Bas-Rhin.

At 10:40 p.m. a "pulsating light" was reportedly seen by an unidentified witness telling that when he came out of a Vendenheim restaurant looking towards the southwest, he made a sighting similar to another - which other one is not specified .

What had surprised him then was the slow movement of this "light", which also appeared to have "pulses".

He would have looked at it for at least 20 minutes and its intensity decreased and then it totally faded.

A little late, he had taken a short video with his cell phone. He said he would try to publish it on the web the next days, planning to give the link.


Temporal data:

Date: June 24, 2010
Time: 10:40 p.m.
Duration: 20 minutes or more.
First known report date: 2012
Reporting delay: Days, 2 years.

Geographical data:

Department: Bas-Rhin
City: Vendenheim
Place: Coming out of a restaurant in Vendenheim, UFO in the sky.
Latitude: 48.667
Longitude: 7.712
Uncertainty radius: 2 km

Witnesses data:

Number of alleged witnesses: 1
Number of known witnesses: 1
Number of named witnesses: 0
Witness(es) ages: ?
Witness(es) types: ?

Ufology data:

Reporting channel: By the web to the Alsatian ufology association SPICA.
Type of location: Coming out of a restaurant in a village, UFO in the sky.
Visibility conditions: Night
UFO observed: Yes
UFO arrival observed: ?
UFO departure observed: ?
Entities: No
Photographs: Yes, not available.
Sketch(s) by witness(es): No.
Sketch(es) approved by witness(es): No.
Witness(es) feelings: ?
Witnesses interpretation: ?


Hynek: NL
ALSACAT: Insufficient information, no reported strangeness..



06/24/2010 - 10:40 p.m. - Bas-Rhin (67) - Pulsating light

Date: 06/24/2010

Hour: 10:40 p.m.

Place: Vendenheim (Bas-Rhin - 67)

Observer: Not communicated


Reported on: Not communicated



Vendenheim (67) 06/24/2010

Coming out tonight 06/24/10 10:40 p.m. from a restaurant in Vendenheim looking towards the Southwest, I did, it seems to me, make a similar observation (see RNCSC note): description of the quasi equivalent phenomenon; what surprised me at the time, it is the slow movement of this "light", also appearing to have "pulses". I followed it for at least 20 minutes and its intensity decreased to completely fade away... despite having thought a bit late, I could make a little video with my mobile phone (so quality not fantastic...): I will try to place it on a host server tomorrow or Saturday, and give you the link then.

Interesting observation anyway...


Note by RNCSC: we ignore what observation the witness refers to.


City Date and hour of observation General shape
General color
VENDENHEIM Thursday 24 June 2010 at 10:40 p.m. Luminous trace
information not communicated
Unsolved -lack of info



A light that "appears" to pulse makes me thinking strongly about a Chinese lantern. But the duration of 20 minutes is too long; these objects stay in the air for about 5 minutes, usually.

There is obviously little information here, I was unable to find the announced video and unable to find the observation that was said to be similar.

As for the strangeness, there is nothing. This could have been a planet, a star, a helicopter...


Insufficient information, no reported strangeness.

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 March 12, 2016 Creation, [spa1], [rnc1], [spa2].
1.0 Patrick Gross March 12, 2016 First published.

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This page was last updated on March 12, 2016.