* Astronomy

Mihonoseki-mach, Yatsuka-gun, Shimane-ken, Japan
Fell 1992 December 10, 21:00 Japanese standard time
Ordinary chondrite (L6)
During a thunderstorm the meteorite fell through the roof of the two-story house of Mr. M. Matsumoto in 117 Sozu, town of Mihonoseki. It penetrated two floors and was found the next day under the house near a small hole in the ground, one individual weighing 6.38 kg. A fireball was observed before by many eye-witnesses in Wakayama, Osaka, Hyogo, Okayama and Hiroshima prefectures and Shikoku Island. Two observers noted as the time of the fireball passage 20:58 and 20:59, respectively. Research material and PTS, analysis and classification, olivine Fa25.5 ± 0.3, pyroxene Fs21.3 ± 0.4 (0.8% CaO), Masako Shima and Akihiko Okada, National Science Museum, 7-20 Ueno Park, Taito-ku, Tokyo. The main mass will later be returned to the owner, Mr. Matsumoto. Information, M. Shim a. Cosmogenic radionuclides, Shima et al. (1993).
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