(meteorobs) Perseid Video Results
Mikhail Maslov
ast3 at ngs.ru
Sun Aug 27 22:29:02 EDT 2006
Hello, Robert and all,
Perhaps I understand something wrong, but when I read on the page you
linked here that "Light enters through the external Nikon 50mm F1.4 lens, then is
intensified approximately 100,000 times as is passes through the Abex
Grade A X1332 Gen II intensifier", I calculated, that vLM should be
12.5 mag (Log(2.512)100,000) higher comparing to visual one. But it
is obviously not so, as you give vLM values of 6.5 - 6.7 mag. Why am I
not correct?
And another queation: what was vusial LM during these vidoe
observations?
Best regards, Mikhail Maslov
RL> August 12, 2006
RL> Pine Valley Viewpoint, CA
RL> 0848-0948 UT 1.00 52 Meteors (30 Perseids)
RL> 0948-1048 UT 1.00 58 Meteors (28 Perseids)
RL> 1050-1149 UT 0.98 75 Meteors (42 Perseids)
RL> Totals: 2.98 185 " 100 "
RL> Notes: Video LM with 86% moon was +6.5
RL> Clouds interfered during second hour
RL> Camera Direction: Az. 345 Al. +40
RL> August 13, 2006
RL> Pine Valley Viewpoint, CA
RL> 0739-0839 UT 1.00 49 Meteors (35 Perseids)
RL> 0841-0941 UT 0.97 63 Meteors (47 Perseids)
RL> 0941-1047 UT 1.10 99 Meteors (75 Perseids)
RL> Totals: 3.07 211 " 157 "
RL> Notes: Video LM with 78% moon was +6.7
RL> Camera Direction: Az. 345 Al. +35
RL> Details on these and all AMS video observations
RL> are available on the AMS web site at:
RL> http://www.amsmeteors.org/video.html#video
RL> Clear Skies!
RL> Robert Lunsford
RL> ---
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