(meteorobs) Perseids Wednesday morning in Iowa
Pierre Martin
pmartin at teksavvy.com
Wed Aug 12 11:56:32 EDT 2015
Hi Paul,
Nice report! That is an impressive number of fireballs!
After a long hiatus from meteor observing (life has been busy), I’m looking forward to the peak tonight. This will be my first meteor session of the year, and I am really looking forward to a full night under dark skies. It looks like there will be a nice band of clear skies about 4 hours drive to the west of Ottawa, so I am off on a road trip.
Don’t forget Mikhail Maslov’s prediction of elevated rates this year (ZHR approx 120):
http://feraj.narod.ru/Radiants/Predictions/Perseids2015eng.html
Best of luck to everyone, and lots of PERs!
Pierre Martin
Ottawa, Ontario
> On Aug 12, 2015, at 11:14 AM, Paul Martsching <pmartsching at mchsi.com> wrote:
>
>
> McFarland Park 4 miles NE of Ames, Story County, Iowa. Long: 93 deg 34 min W Lat: 42 deg 05 min N
> Elevation 1,030 feet (parking lot).
>
> 3.5 hours; quit at 4 am CDST because a big area of thick cirrus clouds was moving in from the West; also by that time there was some fairly dense ground fog. I had to contend with scattered patches of smallish clouds during most of the first hour.
>
> I was surprised by the number of Perseid fireballs. Most of the mag. - 5 and brighter Perseids ended 5 degrees or lower above the horizon, so the train durations were shortened by atmospheric dimming. So no trains were seen to last longer than 8 seconds. The mag. - 7 Perseid at 0837 UT ended only a degree above the northern horizon and by that time there was a layer of ground fog, so its train disappeared very quickly in the fog.
>
> No Kappa Cygnids were seen.
>
> 0530 - 0630 UT 12 Aug 2015 62 deg F; dew pt 60 deg F; calm; mostly clear; average cloud cover 5 per cent; average LM 5.5; facing North 50 deg; teff 1.0 hour.
> Capricornid: one: - 1
> Perseids: twelve: - 6; - 5; 0(2); +1(2); +2(3); +3(2); +4
> SDA: one: - 1
> Sporadics: three: 0; +3; +4
> Total meteors: seventeen
>
> 0630 - 0730 UT 12 Aug 2015 61 deg F; dew pt 59 deg F; calm; clear; LM 5.7; facing North 50 deg; teff 1.0 hour.
> Beta Perseid: one: +2
> Perseids: nineteen: - 5; - 2; - 1; 0; +1(3); +2(7); +3(3); +4(2)
> Sporadics: three: 0; +1; +3
> Total meteors: twenty-three
>
> 0730 - 0830 UT 12 Aug 2015 60 deg F; dew pt 59 deg F; calm; clear; LM 5.6; facing North 50 deg; teff 1.0 hour.
> Beta Perseid: one: +1
> Perseids: twenty: - 5; - 4; - 3; - 2(2); - 1(3); 0(2); +1; +2(4); +3(4); +4
> SDA: one: +3
> Sporadics: five: +1(2); +2; +3
> Total meteors: twenty-seven
>
> 0830 - 0900 UT 12 Aug 2015 60 deg F; dew pt 58 deg F; calm; clear with low-lying ground fog, but fog probably effecting sky conditions above the level where is was obvious; LM 5.5; facing North 50 deg till 0850 UT, then facing NE 50 deg; teff 0.5 hour (30 minutes). Quit because of approaching fairly dense cirrus-type clouds.
> Eridanid: one: +1
> Perseids: ten: - 7; - 3; 0; +1(3); +2(2); +3(2)
> Sporadics: three: +2; +3(2)
> Total meteors: fourteen (30 minutes)
>
> Paul Martsching in Ames, Iowa
>
>
>
> _______________________________________________
> meteorobs mailing list
> meteorobs at meteorobs.org
> http://lists.meteorobs.org/mailman/listinfo/meteorobs
More information about the meteorobs
mailing list