Sikhote-Alin Meteorite—From the Largest Meteorite Shower in Human History

The Sikhote-Alin event was the largest meteorite shower in recorded history. After breaking off from its parent asteroid 320 million years ago, a 70-metric-ton iron mass wandered through interplanetary space until encountering Earth on 12 February 1947. A fireball brighter than the Sun (it created moving shadows in broad daylight) was seen to explode at an altitude of about 6 km over eastern Siberia. Sonic booms were heard at distances up to 300 km from the point of impact. Chimneys collapsed, windows shattered and trees were uprooted. A 33-km-long smoke trail persisted for several hours in the atmosphere after impact. Iron fragments were scattered over a broad elliptical area. Many of the fragments penetrated the soil, producing impact craters as large as 26 meters; about 200 such depressions have been catalogued. A famous painting of the event by artist and eye-witness P. I. Medvedev was reproduced as a postage stamp issued by the Soviet government in 1957 to commemorate the tenth anniversary of the meteorite fall.

Christie's would like to thank Dr. Alan E. Rubin at the Institute of Geophysics and Planetary Physics, University of California, Los Angeles for his assistance in preparing this catalogue note.