(meteorobs) Perseids August 11/12 from Oregon Star Party

[Wesley Stone]

It was mostly to completely clear for the night of August 11/12 at the Oregon Star Party east of Prineville, OR.  Some thin, high clouds did drop the limiting magnitude a bit from the 7+ of a really decent night there.  Perseids were very numerous, but mostly lacking in bright meteors.  My only fireball was a -4 during a casual count early in the night.  I started counting at 6:00 UT (23:00 local time) and was really excited by the 79 Perseids in my first hour.  Things got better.  My peak interval came from 9:22-10:24 UT, with 127 Perseids.  Over 5.00 hours of Teff, I recorded 538 Perseids and 102 other meteors.  Will do 15-minuted intervals when I get a chance.  A really enjoyable night, making up a bit for the clouds that would mar much of the star party. 

Observer: Wesley Stone (STOWE) 
Location: Indian Trail Spring, OR (44d 18m N; 120d 8m W; elev. 1500m) 
Method: Counting: Watch/Tape recorder 
Date: 2004 August 11/12

Interval UT   Teff     F     LM    KCG   Aqr#    PER   Spo*     
0600-0702     1.00   1.00    6.9    0     4       79    12
0702-0804     1.00   1.00    6.8    1     2       94    14
0808-0911     1.00   1.00    6.8    1     4      115    15
0922-1024     1.00   1.00    6.8    1     3      127    19
1032-1135     1.00   1.00    6.8    0     2      123    24
---
Totals        5.00   1.00    6.8    3    15      538    84

#Due to the difficulty of separating SIA/NDA/Antihelion meteors, these radiants and SDA were combined as Aqr.  No NIA/CAP meteors were seen.

*Spo includes 10 Northern Apex and 4 Southern Apex meteors.

Magnitude Distribution:

               -2  -1   0   1   2   3   4   5  6  Total (Mean)
PER 0600-0702   1   2   1   8  19  24  17   7  -    79   (2.7)
PER 0702-0804   -   1   5   6  15  33  23   9  2    94   (3.0)
PER 0808-0911   1   2   2  18  28  36  22   6  -   115   (2.6)
PER 0922-1024   -   3   7  12  39  33  23   6  -   123   (2.5)
KCG (total)     -   -   -   -   2   1   -   -  -     3   (2.3)
Aqr (total)     1   -   -   1   -   4   8   1  -    15   (3.2)
Spo (total)     -   -   -   4  19  34  23   4  -    84   (3.0)       

--
Wes Stone
Chiloquin, OR
http://skytour.homestead.com     
-- 
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