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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 Kaysersberg, on June 6, 2015:

Case number:



In 2015, someone reported to the UFO website "OVNI-France" an observation of June 6, 2015, at 10:30 p.m., for about 12 seconds, in Kaysersberg in the Haut-Rhin; which would have had six witnesses.

Three white balls in triangular formation flew low in the night sky without any audible noise. It is said there were 20 small bright features that moved next.

The reporter said that it was very odd and caused a big scare.


Temporal data:

Date: June 6, 2015
Time: 10:30 p.m.
Duration: 12 seconds.
First known report date: 2015
Reporting delay: Day, months.

Geographical data:

Department: Haut-Rhin
City: Kaysersberg
Place: Not reported, UFO in the sky.
Latitude: 48.139
Longitude: 7.263
Uncertainty radius: 2 km

Witnesses data:

Number of alleged witnesses: 6
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 UFO website "OVNI-France".
Type of location: Not reported, UFO in the sky.
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: Puzzled, scared.
Witnesses interpretation: ?


Hynek: NL
ALSACAT: Insufficient information.



06-06-2015 - (Dep.68) - White balls in triangle in the sky

Date: 06-06-2015

Department: 68 (Haut-Rhin)

Localization: Kaysersberg

Hour: 10:30 p.m.

Numbers [sic] of witnesses: 6 people

Type of observation: NL: Nocturnal Lights

Approximate duration of the observation: 12 seconds

What was seen: White balls in triangle in the sky

Description of the facts:

Three white balls in triangular formation flying low in the Alsatian night sky. No audible noise but small bright features that moved next to it, about 20. Very weird, big scare.



I am unable to propose a solid ordinary explanation to this sighting report, perhaps simply because too much information is missing.

The reporter says the three spots were in a triangular formation. Let's note again that, by definition, three points always form a triangle. What was important to report was the angle between the tips, and of course the elevation angle, the angular displacement, the angular size, the direction, the trajectory, the place of observation, etc.


Insufficient information.

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 1, 2016 Creation, [ofe1].
1.0 Patrick Gross March 1, 2016 First published.

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This page was last updated on March 1, 2016.