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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 Réguisheim, on September 8, 2017:

Case number:



The administrator of the web board of the SPICA Alsatian ufology association published on September 14, 2017, on their web board, that there was an observation of three luminous dots in Réguisheim in the Haut-Rhin on September 8, 2017.

There were two witnesses located on Grand Rue, at 5:11 a.m. The orange-yellow colored dots were reportedly in the north-north-west at the beginning of the observation and in the East at the end of the observation; which lasted about ten minutes.

There was no noise, a "fast" movement during 8 minutes. The witness who wrote the report refers to photos, which were not published.


Temporal data:

Date: September 8, 2017
Time: 05:11 a.m.
Duration: ~10 minutes.
First known report date: September 14, 2017
Reporting delay: 1 to 6 days.

Geographical data:

Department: Haut-Rhin
City: Réguisheim
Place: Gand-Rue
Latitude: 47.896
Longitude: 7.355
Uncertainty ratio: 300 meters.

Witnesses data:

Number of alleged witnesses: 2
Number of known witnesses: 1
Number of named witnesses: 0
Witness(es) ages: Not reported.
Witness(es) types: Not reported.

Ufology data:

Reporting channel: By the web to the SPICA Alsatian ufology association.
Type of location: Street or house in village.
Visibility conditions: Night.
UFO observed: Yes
UFO arrival observed: ?
UFO departure observed: Yes
Entities: No
Photographs: Yes, unpublished.
Sketch(s) by witness(es): No.
Sketch(es) approved by witness(es): No.
Witness(es) feelings: Not reported.
Witnesses interpretation: Not reported.


Hynek: NL
ALSACAT: Probable Chinese lanterns.



Reguisheim (68) 09/08/2017 3 luminous dots

Message by Admin on thu Sep 14 - 05:49 p.m.

5:11 Morning, grand rue [main street], two witnesses

3 luminous dots, yellow orange color

Orientation at the start of the observation : North North West

Orientation at the end of the observation : East

No noise, moving at the start it is seen on the photos and in 8 minute[s] it moved faat direction nord west this lasted about 10 minute[s]

Thanks to other potential witnesses to contact us.



This is a very poor report of what has all the characteristics of Chinese lanterns.


A Chinese lantern.

The first "false UFOs" caused by Chinese lanterns that I identified were in the United States during the airship wave of 1896-1897, it also happened during the 1954 French "saucers" flap, including in Alsace (Example), it happened during the wave of 1973 in the United States (Example), etc. As there are years-long gaps in their use, some ufologists, too many ufologists, and of course the witnesses, forget them as a possible cause for UFO sightings.

In the years 2005 to 2018 (when I write these lines - in Alsace, most so-called "UFO sightings" that were reported were actually caused by 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 January 13, 2018 Creation, [spa1].
1.0 Patrick Gross January 13, 2018 First published.

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This page was last updated on January 13, 2018.