(meteorobs) Observation August 8/9 2011

[Pierre Martin]

Hi all,

I was out on Tuesday morning for a brief one hour session.  Just as I  
arrived at the Pendleton airport, I casually saw a nice +1 or so  
bluish Alpha Capricornid descend slowly into Aquarius.  Overall, the  
sky was below average transparency and cirrus clouds could be seen  
slowly encroaching on the horizon.

I caught 27 meteors in all, including 13 Perseids (a number of which  
were fairly bright).  At 2:20am EDT, I saw a nice yellow Kappa Cygnid  
of average brightness that flared in and out a few times.

Clear skies,

Pierre Martin
Ottawa, Ontario



DATE: August 8/9 2011
BEGIN: 05:28 UT (01:28 EDT) END: 06:28 UT (02:28 EDT)
OBSERVER: Pierre Martin (MARPI)
LOCATION: Long: -75.092 West; Lat: 45.568 North
Observing site: Pendleton Airport, Ontario, CANADA
RECORDING METHOD: talking clock/tape recorder, plotting
----------------------------------------------------------

OBSERVED SHOWERS:_______________________________radiant position
KCG (Kappa Cygnids)_____________________________18:47 +46
PER (Perseids)__________________________________02:38 +56
CAP (Alpha Capricornids)________________________20:40 -08
ANT (Antihelions)_______________________________21:48 -12
SDA (South Delta Aquarids)______________________23:09 -14
PAU (Pisces Austrinids)_________________________23:18 -27
AUP (August Piscids - IMO video database)_______00:40 +19
ERI (Eridanids - IMO video database)____________02:53 -12SPO (sporadics)
----------------------------------------------------------

OBSERVING PERIODS: 0 = none seen; / = shower not observed

PERIOD(UT)___FIELD_____Teff___LM____SPO_PER_KCG_CAP_ANT_SDA_PAU_AUP_ERI

05:28-06:28__359  
+19___1.00___6.25___9__13___1___0___3___1___0___0___0  =  27


Notes: The first column (Period UT) refers to observing periods, in  
Universal Time. The second column (Field) is the area in in the sky  
where I centered my field of view. The third column (TEFF) Teff is  
simply the total time during the observing session spent actually  
watching the sky. Breaks and/or dead time are not included in the  
reported Teff. It is reported in decimal format such that a 60 minute  
observing session would be reported as Teff = 1.00. The column (LM) is  
the average naked eye limiting magnitude seen.  All following columns  
indicate the number of meteors for each shower observed.  For more  
info, see: http://www.namnmeteors.org/guidechap2.html
------------------------

MAGNITUDE DISTRIBUTIONS:

SHOWER
______0__+1__+2__+3__+4__+5______AVE

PER___3___3___2___3___2___0_____+1.84
SPO___0___0___3___2___3___1_____+3.22
ANT___0___1___0___0___1___1_____+3.33
KCG___0___0___1___0___0___0_____+2.00
SDA___0___0___0___0___1___0_____+4.00


Note: Magnitude -8 is comparable to a quarter moon, magnitude -4 with  
the planet Venus, magnitude -1 with the brightest star Sirius,  
magnitude +2 to +3 with most average naked eye stars and magnitude +6  
to +7 are the faintest stars the naked eye can see under typical dark  
conditions. A meteor of at least magnitude -3 is considered a fireball  
(IMO definition). The above table contains the magnitudes from all  
observed meteors, and the average (last column) for showers.
------------------------

SKY OBSCURED (FOV) (UT):  none

------------------------

Dead time: None

Breaks (UT): None

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