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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 Morschwiller, on July 13, 2013:

Case number:



In early March 2014, I found on a "UFO" website a story about an observation of two green moving balls, on July 13, 2013, at 11:15 p.m., in Morschwiller in the Bas-Rhin.

The witness said that with a friend, he went on a hill to watch the fireworks and the starry sky. At one time, the friend pointed out that he distinguished a strange object moving slowly vertically in the sky just above them.

There was a little green ball that at that time suddenly stopped and made a U-turn, then a second ball made a similar move. The sighting lasted 10 minutes.


Temporal data:

Date: July 13, 2013
Time: 11:15 p.m.
Duration: 10 minutes.
First known report date: March 1, 2014 or earlier.
Reporting delay: Hours, months?

Geographical data:

Department: Bas-Rhin
City: Morschwiller
Place: On a hill.
Latitude: 48.820
Longitude: 7.626
Uncertainty ratio: 5 km

Witnesses data:

Number of alleged witnesses: 2
Number of known witnesses: 1
Number of named witnesses: 0
Witness(es) ages: ?
Witness(es) types: ?

Ufology data:

Reporting channel: On the web to the UFO website "".
Type of location: On a hill.
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: Puzzled.
Witnesses interpretation: UFO?


Hynek: LN
ALSACAT: Probable Chinese lanterns.



13-07-2013 - (Dep.67) - Two green balls that move

Date: 13-07-2013

Département: 67 (Bas-Rhin)

Localisation: morschwiller

Time: 23h15

Numbers [sic] of witnesses: 2 people

Type of observation: NL: Nocturnal Lights

Approxima [sic] duration of the observation: 10 minutes

What was seen: two green balls that move

Description of the facts:

a friend and i are going on a hill: we watch the fireworks and also the starry sly. At one time , my friend tells me he distinguishes a strange object moving slowly (vertically )in the sky right above us . We observe indeed a small green ball ( even a second one), which at this time stopped suddenly and made a u-turn: it was very impressive ! The second ball made a similar displacement .



Nightly on the 12th or 13th or 14th or 15th in July, Alsatian towns celebrate the National Day, and in the last few years, Chinese lanterns have often been launched. Here we are in the countryside, but there is a village almost every three kilometers.

Chinese lanterns are often orange-colored, or rather, were usually orange-colored, but they are now sold in all colors (Picture below). The green color cannot be invoked to exclude Chinese lanterns here.

The wind, when there is wind, push Chinese lanterns. But the wind does not necessarily blow in the same direction at all altitudes, especially when there are hills, as it is the case here.

We would have a first lantern, which rose, we are told, and changed direction. As if after coming high enough it met opposite wind. Then the second ball, we are told, did a similar movement. As if it also rose then also met the opposite wind.


Probable Chinese lanterns.

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 March 18, 2014 Creation, [ofe1].
1.0 Patrick Gross March 18, 2014 First published.

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This page was last updated on March 18, 2014.