(meteorobs) Perseids last night

Paul Martsching pmartsching at mchsi.com
Wed Aug 13 14:05:27 EDT 2014


I was out most of last night observing 0345-0645 and 0700-1015 UT.  I saw no Perseid fireballs and fewer negative magnitude Perseids than the previous morning.

The parking lot lights at the Story County Conservation Center at McFarland Park go off at 10:45 CDST.  The LM was a little better than yesterday.  On drive home saw evidence of horizon haze up to 3 degrees, but still not bad for Iowa in summer.  I deployed a black umbrella to block the bright Moon light.  

The session got off to a bad start.  I saw two Perseids right away, then it was a half hour before I saw another meteor.  There were several other long lulls in which no Perseids were seen.  It was nearly two hours before I saw the first negative magnitude Perseid.  

The brightest meteor of the session was a - 5 yellow Antihelion that ended near Capella.  The next brightest meteor was a - 4 yellow Kappa Cygnid.  The brightest Perseid was - 3.  The brightest ATR was - 2.  No apparent SDA's or ERI's.  Trains were more apparent than yesterday morning due to slightly better LM.

McFarland Park parking lot 4 miles NE of Ames, Story Co, Iowa.  Long: 93 deg 34 min W; Lat: 42 deg 05 min N; elevation 1,030 feet.  

13 Aug 2014 0345-0445 UT 58 deg F; dew pt 55 deg F; wind NW 6 mph; little horizon haze; LM 5.3; facing N 50 deg; teff 1.0 hour.
ATR: none
KCG: none
PER: nine: +1(3); +2; +3(3); +4(2)
Sporadics: one: +3
Total meteors: ten (during this hour as many satellites as meteors)

13 Aug 2014 0445-0545 UT 57 deg F; dew pt 54 deg F; wind calm; clear; LM 5.3; facing N 50 deg; teff 1.0 hour.
ATR: none
KCG: one: +3
PER: nine: - 1; +1; +2; +3(6)
Sporadics: four: - 1; +1; +2; +3
Total meteors: fourteen

13 Aug 2014 0545-0645 UT 55 deg F; dew pt 53 deg F; wind W 5 mph; clear; LM 5.2; facing N 50 deg; teff 1.0 hour.
ANT: one: - 5
ATR: none
KCG: none
PER: thirteen: - 3; - 2; - 1; 0(2); +1(3); +2(3); +3; +4
Sporadics: three: +3(3)
Total meteors: seventeen

Break 0645 - 0700 UT to rest eyes

13 Aug 2014 0700-0800 UT 54 deg F; dew pt 52 deg F; wind W 3 mph; clear; LM 5.2; facing N 50 deg; teff 1.0 hour.
ANT: none
ATR: one: - 2
KCG: two: - 4; 0
PER: twenty-three: - 2; - 1; 0(2); +1(2); +2(11); +3(5); +4
Sporadics: three: +2; +3(2)
Total meteors: twenty-nine

13 Aug 2014 0800-0900 UT 54 deg F; dew pt 52 deg F; wind W 3 mph; clear; LM 5.2; facing N 50 deg; teff 1.0 hour.
ANT: none
ATR: none
KCG: none
PER: thirteen: 0; +1(4); +2(2); +3(5); +4
Sporadics: five: - 2; +2(2); +3(2)
Total meteors: eighteen (one lull of 13 minutes and another of 15 minutes with no PER's seen, tho sporadics were seen during these lulls.)

13 Aug 2014 0900-1000 UT 53 deg F; dew pt 52 deg F; wind W 3 mph; clear; LM 5.1; facing N 50 deg; teff 1.0 hour.
ANT: none
ATR: one: 0
KCG: none
PER: twenty-one: - 2; -1(2); 0(5); +1(2); +2(5); +3(5); +4
Sporadics: four: +2; +3(3)
Total meteors: twenty-six

I continued another 15 minutes while it was getting light in the East.

13 Aug 2014 1000-1015 UT as above but LM 5.0 and teff 0.25 hour.
PER (and total meteors): eight: - 1; 0(2); +2(2); +3(3)  - 15 minutes









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