Yamato 791197
| Yamato 791197 | |
|---|---|
| Type | Achondrite |
| Class | Lunar meteorite |
| Group | Anorthositic[1] |
| Parent body | Moon |
| Country | Antarctica |
| Coordinates | 71°30′S 35°40′E / 71.500°S 35.667°E[1] |
| Observed fall | No |
| Fall date | 0.03–0.09 Myr[2] |
| Found date | November 20, 1979 |
| TKW | 52.4 g |
Yamato 791197, official abbreviation Y-791197, is a meteorite that was found in Antarctica on November 20, 1979.[3]
It is the first lunar meteorite to be found on Earth, but was not identified as such until 1984, after the lunar origin of ALH 81005 was recognised.[4] It was collected by the National Institute of Polar Research, Japan.[1]
Classification and characteristics
[edit]Weighing 52.4 grams, it is a weakly shocked feldspathic regolith breccia believed to have come from the lunar highlands on the far side of the Moon.[1][5]
It is classified as lunar-anorthositic breccia, a lunar meteorite that is primarily anorthositic.[1]
See also
[edit]References
[edit]- ^ a b c d e Meteoritical Bulletin Database: Yamato 791197
- ^ Cassidy, William A. (2003). Meteorites, Ice, and Antarctica. Cambridge University Press. p. 186.
- ^ Korotev, Randy L. "Lunar Meteorite: Yamato 791197". Washington University in St. Louis, Department of Earth and Planetary Sciences. Retrieved 2011-11-15.
- ^ "Lunar Meteorite: Yamato 791197 | Some Meteorite Information | Washington University in St. Louis". sites.wustl.edu. Retrieved 2024-08-04.
- ^ Ostertag, R.; et al. (1985). "Lunar meteorite Yamato 791197: a weakly shocked regolith breccia from the far side of the Moon". Lunar and Planetary Science. XVI/3: 635–636. Bibcode:1985LPI....16..635O.