(meteorobs) Obs: 17/18 August 2007

pmartsching at mchsi.com pmartsching at mchsi.com
Sun Aug 19 15:04:58 EDT 2007


18 August 2007 03:30-07:15 UT (CDST 17/18 August 10:30pm - 2:15am)

Paul Martsching
McFarland Park 4 miles NE of Ames, Story County, Iowa
Long: 93 deg 34 min W  Lat: 42 deg 05 min N  Elevation, ~1,040 feet
Method: Visual; paper, pencil & talking clock

03:30-04:30; 80 deg F; wind South 10 mph; at 03:30 limiting mag. 5.7 and 20%
cloud cover, but conditions rapidly improved; average limiting magnitude 5.9 and
average cloud cover 5%; facing East 50 degrees; total teff 1.0 hour
Time   mag.   type   comment
03:35  +1     KCG
03:43  +3     KCG
03:48  +2     KCG
03:58  +2     PER    brief train
04:02  +2     Spor   brief train
04:03  +3     Spor
04:25   0     Spor   orange
Antihelion: none
Kappa Cygnids: three: +1, +2, +3
Perseids: one: +1
Sporadics: three: 0, +3(2)
Total Meteors: seven

04:30-05:30; 78 deg F; wind South 8 mph; clear; average limiting magnitude 6.0;
facing East 50 degrees; total teff 1.0 hour
Time   mag.  type   comment
04:31  -1    KCG    orange; brief train
04:44  +5    Spor
04:52  +3    Spor
05:02  +1    KCG    yellow
05:08  +3    Spor
05:09  +4    KCG
05:10  -2    ANT    yellow
05:15  +2    Spor   yellow
05:26  +4    Spor
Antihelion: one: -2
Kappa Cygnids: three: -1, +1, +4
Perseids: none
Sporadics: +2, +3(2), +4, +5
Total meteors: nine

05:30-06:30; 77 deg F; wind SW 10 mph; clear; average limiting mag. 6.0; facing
East 50 deg; total teff 1.0 hour
Time   mag.   type   comment
05:40  +2     KCG
05:42  +1     Spor
05:47  +2     Spor
05:49  +1     KCG    yellow
05:52  -1     KCG
05:55  +3     Spor
06:01  -3     KCG    yellow
06:20  +3     Spor
06:27  +4     Spor
06:28  +3     ANT
Antihelion: one: +3
Kappa Cygnids: four: -3, -1, +1, +2
Perseids: none
Sporadics: five: +1, +2, +3(2), +4
Total meteors: ten

06:30-07:15; 45 minutes; 76 deg F; wind SW 10 mph; clear 06:30-07:00; becoming
cloudy 07:00-07:15; average limiting magnitude 5.7; average cloud cover 5%;
facing North 50 degrees; total teff 0.75 hour
Time   mag.   type   comment
06:42   0     ANT    yellow
06:46  +4     PER
06:48  +3     Spor
06:53  +3     Spor
07:03  +3     KCG
07:13  +1     KCG
Antihelion: one: 0
Kappa Cygnids: two: +1, +3
Perseid: one +4
Sporadics: two: +3(2)
Total meteors: six
Quit because sky becoming overcast.

Magnitude distribution for entire session (03:30-07:15) 4.75 hours:
Antihelion: three: -2, 0, +3
Kappa Cygnids: twelve: -3, -1(2), +1(4), +2(2), +3(2), +4
Perseids: two: +1, +4
Sporadics: fifteen: 0, +1, +2(2), +3(8), +4(2), +5
Total meteors: thirty-two

The Kappa Cygnids did not seem abnormally bright this night.



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