L'Aigle (meteorite)
| L'Aigle | |
|---|---|
 fragment of the L'Aigle meteorite | |
| Type | Chondrite |
| Class | Ordinary chondrite |
| Group | L6 |
| Country | France |
| Region | Normandy |
| Coordinates | 48°46′N 0°38′E / 48.767°N 0.633°E[1] |
| Observed fall | Yes |
| Fall date | 26 April 1803 |
| TKW | 37 kg (82 lb) |
| Strewn field | Yes |
 Related media on Wikimedia Commons | |
L'Aigle is a L6 meteorite that fell on 26 April 1803 in Lower Normandy, France.
History
[edit]In the early afternoon of 26 April 1803, a meteorite shower of more than 3000 fragments fell upon the town of L'Aigle in Normandy, France. Upon hearing of this event, the French Academy of Sciences sent the young scientist Jean-Baptiste Biot to investigate.[2] After painstaking work in the field, he reported two kinds of evidence pointing to an extraterrestrial origin for the stones:[3][4]
- Physical evidence: the sudden appearance of many identical stones similar to other stones fallen from the sky in other places
- Moral evidence: many witnesses who observed a "rain of stones thrown by the meteor"
Biot's passionate paper describing how these stones must undoubtedly be of extraterrestrial origin effectively gave birth to the science of meteoritics. The L'Aigle event was a milestone in the understanding of meteorites and their origins because at that time the mere existence of meteorites was harshly debated. If they were recognised, their origin was controversial, with most commentators agreeing with Aristotle that they were terrestrial, and witness reports of meteorite falls were treated with great skepticism. The meteorite has since been stored along with Angers, another meteorite that struck France 19 years later, in a room at the Muséum d'histoire naturelle d'Angers, a French natural history museum.[5]
Composition and classification
[edit]It is a L6 type ordinary chondrite.
See also
[edit]References
[edit]- ^ Meteoritical Bulletin Database: L'Aigle
- ^ Biot, J.-B. (1803). Relation d'un voyage fait dans le département de l'Orne pour constater la réalité d'un météore observé à l'Aigle le 6 floréal an 11 [Account of a journey [that was] made in the department of the Orne in order to confirm the reality of a meteor [that was] observed in l'Aigle on 26 April 1803] (in French). Paris, France: Baudouin.
- ^ M. Gounelle. The meteorite fall at L'Aigle on April 26th 1803 and the Biot report.
- ^ (Biot, 1803), p. 9.
- ^ Pierre-Louis Augereau (2002). Angers Mystérieux (in French). Éditions Cheminements. p. 45. ISBN 2-84478-055-5.