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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 Niederroedern, on August 3, 2008:

Case number:



An anonymous person reported to the UFO website "La Centrale Ufologique" his or her observation in Niederroedern in the Bas-Rhin on August 3, 2008 "between 10:00 p.m. and 09:30 p.m.," a two sentences story with a lot of langage errors and mispells.

The person told he or she saw a light in the sky "like the evening star" coming from the northwest and passing in front of him or her at a "not too fast speed", going towards the southwest. The light dimmed as it became distant until it was not visible anymore.

The person thinks that it could not habe been a plane because there was no engine noise or flicker.


Temporal data:

Date: August 3, 2008
Time: Between 09:30 p.m. and 10:00 p.m.
Duration: ?
First known report date: January 2009
Reporting delay: Hour, 5 months.

Geographical data:

Department: Bas-Rhin
City: Niederroedern
Place: ?
Latitude: 48.906
Longitude: 8.047
Uncertainty radius: 2 km

Witnesses data:

Number of alleged witnesses: 1
Number of known witnesses: 1
Number of named witnesses: 0
Witness(es) ages: ?
Witness(es) types: ?

Ufology data:

Reporting channel: Witness report to UFO website.
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: ?
Witnesses interpretation: Not a plane, there was no engine noise or flicker.


Hynek: NL
ALSACAT: Possible plane or helicopter or satellite.



Niederroedern (67) August 3, 2008 between 10:00 p.m. and 9:30 p.m.

Source: Centrale Ufologique

I saw a light in the sky like the evening star it came from the northwest I saw it pass in front of my eyes towards the southwest not to [sic] fast as and it went away it faded and then nothing.

For me this could not be a plane, there was no engine noise or flicker.


City Date and hour of observation General shape
General color
NIEDERROEDERN Sunday 3 August 2008 at 09:30 p.m. luminous dot
information not communicated
Unsolved -lack of info



This could have been many things: a helicopter, a satellite, a chinese lantern... Or even a plane if the distance was enough for the noise no to be heard and the flickering of the navigation lights dimmed by the main lights.

At about 20 km approximately in the Northwest of Niederroedern is the Silberstreifen airfield in Germany, but it is fit only to very small planes. The Strasbourg-Entzheim airliners airport is quite far, at 50 km in the Southwest of Niederroedern.

As there is no precise hour, a match with a satellite cannot be excluded or proven.


Possible plane or helicopter or satellite.

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 May 4, 2015 Creation, [spa1].
1.0 Patrick Gross May 4, 2015 First published.
1.1 Patrick Gross June 13, 2015 Addition [spa2].

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This page was last updated on June 13, 2015.