Re: [meteorite-list] fireball speed

[KHe1144783]

In a message dated 2/22/2004 8:11:36 AM Pacific Standard Time, [EMAIL PROTECTED] writes:

In general how rapidly must an object travel through the atmosphere to produce visible light? Note that don't even know whether one speed can approximate an answer, or whether factors such as air density, the shape of the object, or the composition of the object have an enormous effect.

Steve: According to several people on the list, its about 4000 MPH for a stone and more for an Iron. I believe were talking about the lower altitudes below 20,000 Ft. I'd like to know if there is record of a fall burning all the way to the ground. Has this ever been recorded ? Kris Henkel, Palm Springs.