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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 Bischwiller, on July 7, 10, 12 and 14, 1986:

Case number:



The liaison bulletin La Ligne Bleue Survolée?, of the ufology group "Cercle Vosgien Lumières Dans La Nuit", in the #18 issue of 1987 published a catalog of observations in their sector, in which were noted several successive observations in Bischwiller in the Bas-Rhin, on July 7, 10, 12 and 14, 1986.

On those evenings, around 11 p.m., two people had observed the slow passage at high altitude of a light of almost spherical shape but with blurred outlines.

The catalog noted that the probable explanation is "satellites."


Temporal data:

Date: July 7, 10, 12 and 14, 1986
Time: 09:00 p.m.
Duration: ?
First known report date: 1987
Reporting delay: Days, 1 year.

Geographical data:

Department: Bas-Rhin
City: Bischwiller
Place: ?
Latitude: 48.766
Longitude: 7.858
Uncertainty radius: 6 km

Witnesses data:

Number of alleged witnesses: 2
Number of known witnesses: ?
Number of named witnesses: 0
Witness(es) ages: ?
Witness(es) types: ?

Ufology data:

Reporting channel: Ufology bulletin "La ligne Bleue Survolées?"
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 satellites.




Ref: F/96/67860700 (01)

BISCHWILLER (67) 22 LT - July 86 - (see previous catalogue).

F/96/67860707 (01)
F/96/67860710 (01)
F/96/67860712 (01)
F/96/67860714 (01)

Several evenings in a row, around 11 p.m. (LT), two people observe the slow passage at high altitude of a light almost spherical in shape but with blurred outlines SAND (67) eastern sector - July 86 -

Classification: probable EXPLANATION by satellites.

It is specified that this case falls within those of "the theoretical territorial coverage of the "CNEGU" [committee of Northeastern France ufology groups] but located in departments not yet covered in practice more than occasionally."



For lack of precise data, for lack of other sources, I note the explanation given by the Cercle Vosgien Lumières Dans La Nuit.


Probable satellites.

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 August 29, 2022 Creation, [lbs1].
1.0 Patrick Gross August 29, 2022 First published.

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This page was last updated on August 29, 2022.