Fireball Over the Sunnmøre Alps
May 28, 2018
This very bright fireball was photographed over the Sunnmøre Alps in Ørsta, Norway, in the early morning hours on March 14, 2018, at 2:47 (UT 01.47). The camera is facing east. Even though the meteoroids that produce meteor streaks are typically no bigger than small pebbles, the rapid heating of the shock wave created by the compression of air rushing ahead of a meteorite in the Earth's upper atmosphere (some 35-70 miles or 55-115 km up) makes it visible to observers on the surface.
Photo Details: Canon EOS 650D camera; Vivitar 8 mm fisheye lens; ISO 1600; 58.3 seconds exposure.