* Astronomy

Name: VILNA.
The place of fall or discovery: 15 km northeast of the village of Vilna, Alberta, Canada;
Lat = 54°16' N, Long = 111°40'W.
Date of fall or discovery: FALL, February 5, 1967, 18 hrs 55'40" Mountain Standard Time.
Class and type: STONY, gray chondrite.
Number of individual specimens: 1.
Total weight: Less than one gram.
Circumstances of the fall or discovery: A bright detonating bolide passed directly over the National Research Council auroral observatory at Meanook, Alberta, and was recorded on the all-sky camera as a bright streak with an azimuth of 110°. Its detonations were clearly recorded on the seismograph of the University of Alberta at a distance of 110 km as air blasts. An ellipse of fall was predicted from the photographic record and abundant ground observations of the bolide. The first fragment was recovered by T. Reiruchen a student of the University of Alberta from the surface of two feet of drifted snow. Observers of the fall area heard many fragments whizzing through the air and striking the snow.
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