(meteorobs) Train production...was something else. :O)
geozay at aol.com
geozay at aol.com
Fri Dec 18 13:18:08 EST 2009
I'm not sure the first sent made it to the lists...so we might have a
double posting...sorry about that.
geo
>>Would anyone care to share their knowledge of the factors at play in the
production of visible "trains"? I would surmise that the velocity of the
object has less to do with this than the mass and the penetration to denser
lower altitudes.<<
Here are some more of what I have recorded from my observations during the
1990's. I'm sure the number of bright magnitudes and number of meteors in
my survey will have some influence, but I think velocity strongly enters
the picture for visible train production. Also Sky magnitude and personal
visual acuity will have some influence as well.
Shower Entry Velocity # of Meteors
Train Production
Leonid 71km/s 573
55%
Eta Aquarid 66km/s 158
45.6%
Aurigids 66km/s 52
40.4%
Orinids 66km/s 459
38.1%
Coma Bernicids 65km/s 14
35.7%
Delta Aurigids 64km/s 100
31%
Perseids 59km/s 1357
41.4%
Hydrids 58km/s 26
7.7%
Lyrids 49km/s 179
16.2%
N.Delta Aquarids 42km/s 96
3.1%
S. Delta Aquarids 41km/s 263
4.6%
Quadrantids 41km/s 104
5.8%
Geminids 35km/s 1413
3.2%
Virginids 30km/s 120
4.2%
N.Taurids 29km/s 437
1.6%
Delta Cancrids 28km/s 18
0%
S. TAurids 27km/s 311
0.32%
Capricornids 25km/s 127
3.9%
sporadics N/A 5900
13.8%
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