(meteorobs) Perseids from Oregon August 13
Wes Stone
howard048 at centurytel.net
Thu Aug 13 23:27:06 EDT 2009
After a mostly clear Wednesday, the clouds returned in the evening. I had
planned to get out before 6:00UT (11pm local), but the clouds put a damper
on that. When I did go out, the cloud bank was retreating to the east. Based
on my 15-minute intervals below, it looks like I probably caught the very
tail-end of this night's spike. There were some decent spurts of meteors
afterward, but a lot of dead time as well. Definitely post-maximum. No
fireballs and no really interesting meteors. The Kappa Cygnids made an
appearance with 3 meteors, and there was a South Delta Aquarid straggler. I
saw my only antihelion meteor of the night after I had packed up.
85 Perseids and 18 other meteors in 2.59 hours Teff (yawn, yawn). A decent
show considering timing, moonlight and clouds, I guess, but not exactly a
memorable Perseid year for me.
Observer: Wesley Stone (STOWE)
Location: Chiloquin, OR (42d 35m N, 121d 52m W)
Method: Counting: Watch/Tape recorder
Date: 2009 August 12/13
6:22 - 6:37UT: 12 PER, 1 Spo (0.245 hours Teff, LM=6.44, F=1.11)
6:37 - 6:52UT: 12 PER, 0 Spo (0.246 hours Teff, LM=6.44, F=1.11)
6:52 - 7:07UT: 9 PER, 1 Spo (0.246 hours Teff, LM=6.41, F=1.21)
7:07 - 7:22UT: 6 PER, 1 Spo (0.246 hours Teff, LM=6.39, F=1.42)
7:22 - 7:37UT: 9 PER, 0 Spo (0.246 hours Teff, LM=6.45, F=1.21)
7:37 - 7:52UT: 9 PER, 1 KCG, 1 Spo (0.246 hours Teff, LM=6.46, F=1.15)
7:52 - 8:07UT: 9 PER, 1 SDA, 3 Spo (0.246 hours Teff, LM=6.35, F=1.24)
8:07 - 8:22UT: 2 PER, 1 KCG, 2 Spo (0.247 hours Teff, LM=6.30, F=1.33)
8:22 - 8:37UT: 6 PER, 1 KCG, 2 Spo (0.246 hours Teff, LM=6.28, F=1.26)
8:37 - 9:00UT: 11 PER, 3 Spo (0.377 hours Teff, LM=6.28, F=1.14)
Magnitude distributions:
KCG: +2(1), +3(1), +4(1) mean=3.0
SDA: +2(1)
PER: -1(6), 0(6), +1(16), +2(16), +3(31), +4(9), +5(1) mean=2.1
Spo: +1(2), +2(5), +3(4), +4(3) mean=2.6
Wes Stone
Chiloquin, OR
http://skytour.homestead.com
http://twitter.com/westronomy
--
So he slept on a mountain.
In a sleeping bag underneath the stars
he would lie awake and count them.
And the gray fountain spray of the great Milky Way
would never let him die alone.
--Wilco
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