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As its name suggests, 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.

Case north of Strasbourg Strasbourg, on April 18, 1976:

Case number:



In "Ufologia", the newsletter of the ufology group CFRU, a letter from "A.G.", a reader was published in late 1977. She reacted to an observation in Strasbourg the day after hers.

The reader said without more precision that shes live in "a small village north of Strasbourg" and, going out like every night to take out her cats, she had seen on Easter Sunday around 10:40 p.m. a yellowish "ball" that was not a star at all.

She said she was accustomed to the starry sky of her region and thus found the incident unusual.

She noted that the object moved very slowly, not in falling, but in a straight line and very gently.

She called her husband to show it to him; he saw it too, but while the woman was looking for binoculars, it disappeared behind the trees.

According to the couple's estimate, the "ball" was to be located above the Rhine near Offendorf.

The witness testified that it was not a jet plane, a helicopter, or a flare.

Around 1995, the CNEGU took on the observation in an article about Moon misintepretations, noting the poverty of the narrative which does not even tell the name of the village of residence. The CNEGU notes that as "the witness" resides north of Strasbourg, it is clear that the UFO is seen relatively to the east, that the direction of observation may coincide with that of the rising moon, and that the description shows no incompatibility with such a mistake, quite the contrary.


Temporal data:

Date: April 18, 1976
Time: 10:40 p.m.
Duration: ?
First known report date: October 1977
Reporting delay: 1.5 years.

Geographical data:

Department: Bas-Rhin
City: ?
Place: From oustide home in village north of Strasbourg, UFO in the sky.
Latitude: 48.717
Longitude: 7.801
Uncertainty ratio: 30 km

Witnesses data:

Number of alleged witnesses: 2
Number of known witnesses: 1
Number of named witnesses: 0
Witness(es) ages: Adults or aged.
Witness(es) types: A married couple.

Ufology data:

Reporting channel: Reader's letter to the ufology bulletin UFOlogia.
Type of location: From oustide home in village, UFO in the sky.
Visibility conditions: Night.
UFO observed: Yes
UFO arrival observed: No
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: Not jet plane, helicopter, star, fireworks.


Hynek: NL
ALSACAT: Unidentified, no strangeness.



F/00/67 76 04 18 (01) Offendorf.


Additional information (2010)

Source: Ufologia No. 10 October-November-December 1977 Page 18.

quarterly magazine published by the CFRU France (Forbach).

Editor: Francis Schaefer

UFO in Alsace

About the article of "DNA" (*) for 23 April 1976: "UFO IN THE SKY OF ROBERTSAU"

(Note: See "Ufologia" No. 5, page 13), I wish to share with you the following:

I live in a small village north of Strasbourg and, every night, I let my cats out for the night. But on Easter Sunday, as the next day was a day of rest, I went out a bit later, around 10:40 p.m. approx. My gaze was attracted by a "ball" of yellowish color that was impossible to be confuse with a star. I am used to the starry sky of our region and that's why I found the incident unusual. While watching it, I saw that this "ball" was moving, but very slowly and I called my husband to show him. He also saw it but, while looking for binoculars, it disappeared behind the trees.

I can affirm that this is not a jet plane or a helicopter. It was not a flare, we know them well since 1939-45. Note that the object was not falling, but moving in a straight line and very gently! In our estimation, the "ball" should be above the Rhine near OFFENDORF.

(*) Latest News from Alsace.


Investigation: Roland Lienhardt / CFRU

CNEGU Comment:

Again, it is unfortunate that the article is so poor on the informational level!

No azimuth and the village of residence of the witness is not even mentioned ...

Difficult to conduct an investigation in such conditions!

As the witness resides north of Strasbourg, it is clear that the UFO is seen relatively eastward.

If the town where he lives is more than 25km from Strasbourg (center) viewing direction coincide once again with that of the rising Moon.

For the rest of the description, no incompatibility with such a misinterpretation (quite the contrary).


There is a problem with the Moon, as on April 18, 1976, at 10:40 p.m., the Moon is not visible. It will only rise at 00:19 on April 19, 1976.

So this is an unidentified to me, though without strangeness.


Unidentified, no 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
Editeur: Patrick Gross

Changes history:

Version: Create/changed by: Date: Description:
0.1 Patrick Gross April 1, 2017 Creation, [cn1].
1.0 Patrick Gross April 1, 2017 First published.

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This page was last updated on April 1, 2017.