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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 Cernay, on August 18, 2012:

Case number:



On August 19, 2012, "Dav2305", introducunh himself as a 30-year-old cook, posted the testimony of his observation on the ufology forum "Les Mystères des OVNIS".

He said he saw on August 18, 2012, at 10:40 p.m., a strange light in the sky, from Cernay in the Haut-Rhin.

He gave an observation length of 3 minutes, and indicated a very clear sky, and no other witness.

He saw a light moving south-southeast; which he initially thought to be a satellite as it often sees them. But the light was moving much faster, west southwest direction, and performed a turn in the north north west direction for approximately 20 seconds before turning again to the north east. Then it slowed down and descended at a high speed.

At that time he saw a big ball of white light which was almost at an altitude of 10000 feet in his opinion, and he saw "like legs on both sides making believe in a triangle shape." Then the object climbed up in about 4 seconds to the north east to disappear among the stars, at what he believes was the speed of light.

He then explained that it was a "very bright triangle shape compared to the Northern star, but brighter and much bigger."

He indicated that the size of the phenomenon was the "size of my thumb," then on interrogation, he specified that this was the size of the thumbnail when the phenomenon was at its lowest position. There was no sound from the phenomenon.


Temporal data:

Date: August 18, 2012
Time: 10:40 p.m.
Duration: 3 minutes.
First known report date: August 19, 2012
Reporting delay: 1 day.

Geographical data:

Department: Haut-Rhin
City: Cernay
Place: ?
Latitude: 47.807
Longitude: 7.176
Uncertainty radius: 4 km

Witnesses data:

Number of alleged witnesses: 1
Number of known witnesses: 1
Number of named witnesses: 0
Witness(es) ages: 30
Witness(es) types: Male, cook.

Ufology data:

Reporting channel: By the web to the ufology forum "Les Mystères des OVNIS."
Type of location: ?
Visibility conditions: Night
UFO observed: Yes
UFO arrival observed: ?
UFO departure observed: Yes
Entities: No
Photographs: No.
Sketch(s) by witness(es): No.
Sketch(es) approved by witness(es): No.
Witness(es) feelings: Puzzled.
Witnesses interpretation: Not a satellite.


Hynek: NL
ALSACAT: Unidentified.



Male Age: 30
Number of messages: 2
Registered on: 08/18/2012
Localization: france
Job: cook
Hobbies: music

Subject: 2012: on 08/18 at 10:40 p.m. - Strange light in the sky - cernay (68) Sun 19 Aug 2012, 14:15

2012: on 08/18 at 10:40 p.m. - Strange light in the sky - cernay (68)

Firstname of pseudo : dav2305

City: cernay

Department: 68

Region or Country: france

Date: 08/18/2012

Hour of the beginning of the observation: 10:40 p.m.

Duration of the observation: 3minutes

Weather conditions: very clear sky

Number of witnesses: 1

Type of phenomenon: Strange light in the sky

Reported officially: No

Complete observation report:

Hello, last night around 10:40 p.m. I noticed a light moving south southeast, i first believe i was seeing a satellite as often but the, the light is much faster moving west south west and also made a direction chage north northwest for about 20 seconds before turning north again, then it slowed down before descending at high speed, it is then that I noticed a big ball of white light which was about the altitude of 10,000 feet, I saw like legs on both sides making believe in a triangle shape, then the unidentified object whent up again during 4 seconds north easterly direction before disappearing in the stars, and I insist on the speed at which it moved, making thing of the speed of light.

Precise description:shape of triangle very luminous compared to the northern star in more luminous and much bigger

Size of the phenomenon: size of my thumb

Behaviour: 2 turns one descent and climbing up again very fast move for the climbing up estimated light speed

Tranjectory [sic]: SSE 70° - North-east 55°

Specific noise: No

Direction of the object relative to the wind: controlled/independent motion

Presence of facilities: not specifiednone to my knowledge

Similar photo: not specified

Table: not specified

I hereby certify the accuracy of the information provided and the authenticity of the documents supplied. I do not know how to identify this phenomenon thank you in advance for your answers.

Regards dav2305

Male Age: 57
Number of messages: 2197
Registere on: 07/01/2011
Localization: Bouches du Rhône
Job: CRaftsman
Hobbies: Scubbadiving

Subject: 2012: on 08/18 at 10:40 p.m. - Strange light in the sky - cernay (68) Sun Aug 19 2012, 05:24 p.m.

Hello Dav,

Thanks for your testimony.

You indicate that the object had the apparent size of your thumb (which is colossal and we'll come back to it) but at what time during your observation was the object this size?

Looking forward to reading you

Appreciable participation
Male Age: 44
Number of messages: 35
Registered on: 08/12/2009
Localization: evreux
Job: archeologist
Hobbies: ufo

Subject: 2012: on 08/18 at 10:40 p.m. - Strange light in the sky - cernay (68) Sun 19 Aug 2012, 05:47 p.m.

interesting testimony.Indeed the apparent size of the object of one thumb is huge.

Do you have the possibility to make a sketch of your observation.

" a big ball of white light...."

" i saw like legs on the two sides that made believe in a triangle shape..."



Author DAV2305
Male Age: 30
Number of messages: 2
Inscription: 18/08/2012
Localization: france
Job: cuisinier
Hobbies: music

Subject: 2012: on 08/18 at 10:40 p.m. - Strange light in the sky - cernay (68) Wed 22 Aug 2012, 10:31 p.m.

The size of the white light that i noticed was the size of the top of the thumb that is pretty much the nail size, this size was seen when this famous light was at the lowest in my view for a short time before disappearing to the north eqst in my opinion at the speed of light

Male Age: 44
Number of messages: 4282
Registered on: 08/16/2012
Localization: Moselle, Metz city
Job: Vaguemestre
Hobbies: Sports fishing, regional history, religious and defense heritage, non conventional music

Subject: 2012: on 08/18 at 10:40 p.m. - Strange light in the sky - cernay (68) Wed 22 Aug 2012, 10:31 p.m.

Strange all this... do e hav a "micro-flap" ? It is reportd on the other side; Vosges slope (88), luminous white light balls that would have been spotted on the 8th et 9th/08 in Neufchateau, on 08/17 on Mirecourt at about midnight, on 08/19 on Epinal between 1 pm and 10:30pm

ISS again... ?




I do not think that observation is that of the International Space Station (ISS): the reported maneuvers, turns, descent, ascent, as reported, are certainly not quantified precisely but unless they are invented, they are undeniable.

Not seeing what it could have been, I leave the case "unidentified"; but its reliability is not very good and its credibility is unknown.



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 September 5, 2015 Creation, [myo1].
1.0 Patrick Gross September 5, 2015 First published.

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This page was last updated on September 5, 2015.